diff --git a/pkl-core/src/test/files/LanguageSnippetTests/input/api/Resource.pkl b/pkl-core/src/test/files/LanguageSnippetTests/input/api/Resource.pkl
index 2338d15f..a147af0d 100644
--- a/pkl-core/src/test/files/LanguageSnippetTests/input/api/Resource.pkl
+++ b/pkl-core/src/test/files/LanguageSnippetTests/input/api/Resource.pkl
@@ -16,16 +16,40 @@ examples {
 
   ["sha1"] {
     empty.sha1
+    empty.bytes.sha1
     fox.sha1
+    fox.bytes.sha1
   }
 
   ["sha256"] {
     empty.sha256
+    empty.bytes.sha256
     fox.sha256
+    fox.bytes.sha256
   }
 
   ["sha256Int"] {
     empty.sha256Int
+    empty.bytes.sha256Int
     fox.sha256Int
+    fox.bytes.sha256Int
+  }
+
+  ["in-language"] {
+    new Resource {
+      base64 = Bytes(1, 2, 3, 4).base64
+    }.sha256
+
+    new Resource {
+      uri = "foo:foo"
+      text = "foo bar"
+      base64 = text.base64
+    }
+
+    new Resource { bytes = Bytes(1, 2, 3, 4) }.sha256
+
+    new Resource { bytes = Bytes(1, 2, 3, 4) }.base64
+
+    new Resource { base64 = "AQIDBA==" }.bytes
   }
 }
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/output/api/Resource.pcf b/pkl-core/src/test/files/LanguageSnippetTests/output/api/Resource.pcf
index 4bd8c29c..9aea990c 100644
--- a/pkl-core/src/test/files/LanguageSnippetTests/output/api/Resource.pcf
+++ b/pkl-core/src/test/files/LanguageSnippetTests/output/api/Resource.pcf
@@ -9,14 +9,31 @@ examples {
   }
   ["sha1"] {
     "da39a3ee5e6b4b0d3255bfef95601890afd80709"
+    "da39a3ee5e6b4b0d3255bfef95601890afd80709"
+    "408d94384216f890ff7a0c3528e8bed1e0b01621"
     "408d94384216f890ff7a0c3528e8bed1e0b01621"
   }
   ["sha256"] {
     "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+    "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+    "ef537f25c895bfa782526529a9b63d97aa631564d5d789c2b765448c8635fb6c"
     "ef537f25c895bfa782526529a9b63d97aa631564d5d789c2b765448c8635fb6c"
   }
   ["sha256Int"] {
     1449310910991872227
+    1449310910991872227
+    -6359199461968751633
     -6359199461968751633
   }
+  ["in-language"] {
+    "9f64a747e1b97f131fabb6b447296c9b6f0201e79fb3c5356e6c77e89b6a806a"
+    new {
+      uri = "foo:foo"
+      text = "foo bar"
+      base64 = "Zm9vIGJhcg=="
+    }
+    "9f64a747e1b97f131fabb6b447296c9b6f0201e79fb3c5356e6c77e89b6a806a"
+    "AQIDBA=="
+    Bytes(1, 2, 3, 4)
+  }
 }
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/output/api/reflectedDeclaration.pcf b/pkl-core/src/test/files/LanguageSnippetTests/output/api/reflectedDeclaration.pcf
index cbb5a43a..da80db5f 100644
--- a/pkl-core/src/test/files/LanguageSnippetTests/output/api/reflectedDeclaration.pcf
+++ b/pkl-core/src/test/files/LanguageSnippetTests/output/api/reflectedDeclaration.pcf
@@ -13,9 +13,9 @@ alias {
     members = List(new {
       referent {
         location {
-          line = 1056
+          line = 1058
           column = 1
-          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1056"
+          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1058"
         }
         docComment = """
           A boolean value, either [true] or [false].
@@ -197,9 +197,9 @@ alias {
         properties = Map()
         methods = Map("xor", new {
           location {
-            line = 1066
+            line = 1068
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1066"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1068"
           }
           docComment = """
             Tells if exactly one of [this] and [other] is [true] (exclusive or).
@@ -221,9 +221,9 @@ alias {
           })
         }, "implies", new {
           location {
-            line = 1079
+            line = 1081
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1079"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1081"
           }
           docComment = """
             Tells if [this] implies [other] (logical consequence).
@@ -251,9 +251,9 @@ alias {
     }, new {
       referent {
         location {
-          line = 1092
+          line = 1094
           column = 1
-          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1092"
+          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1094"
         }
         docComment = """
           A sequence of Unicode characters (code points).
@@ -433,9 +433,9 @@ alias {
         }
         properties = Map("length", new {
           location {
-            line = 1103
+            line = 1105
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1103"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1105"
           }
           docComment = """
             The number of characters in this string.
@@ -458,9 +458,9 @@ alias {
           name = "length"
         }, "lastIndex", new {
           location {
-            line = 1116
+            line = 1118
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1116"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1118"
           }
           docComment = """
             The index of the last character in this string (same as `length - 1`).
@@ -480,9 +480,9 @@ alias {
           name = "lastIndex"
         }, "isEmpty", new {
           location {
-            line = 1126
+            line = 1128
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1126"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1128"
           }
           docComment = """
             Tells whether this string is empty.
@@ -499,9 +499,9 @@ alias {
           name = "isEmpty"
         }, "isBlank", new {
           location {
-            line = 1137
+            line = 1139
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1137"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1139"
           }
           docComment = """
             Tells if all characters in this string have Unicode property "White_Space".
@@ -519,9 +519,9 @@ alias {
           name = "isBlank"
         }, "isRegex", new {
           location {
-            line = 1140
+            line = 1142
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1140"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1142"
           }
           docComment = "Tells if this string is a valid regular expression according to [Regex]."
           annotations = List()
@@ -529,9 +529,9 @@ alias {
           name = "isRegex"
         }, "isBase64", new {
           location {
-            line = 1150
+            line = 1152
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1150"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1152"
           }
           docComment = """
             Tells if this is a valid base64-encoded string.
@@ -549,9 +549,9 @@ alias {
           name = "isBase64"
         }, "md5", new {
           location {
-            line = 1157
+            line = 1159
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1157"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1159"
           }
           docComment = """
             The [MD5](https://en.wikipedia.org/wiki/MD5)
@@ -565,9 +565,9 @@ alias {
           name = "md5"
         }, "sha1", new {
           location {
-            line = 1163
+            line = 1165
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1163"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1165"
           }
           docComment = """
             The [SHA-1](https://en.wikipedia.org/wiki/SHA-1)
@@ -580,9 +580,9 @@ alias {
           name = "sha1"
         }, "sha256", new {
           location {
-            line = 1168
+            line = 1170
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1168"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1170"
           }
           docComment = """
             The [SHA-256](https://en.wikipedia.org/wiki/SHA-2)
@@ -594,9 +594,9 @@ alias {
           name = "sha256"
         }, "sha256Int", new {
           location {
-            line = 1172
+            line = 1174
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1172"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1174"
           }
           docComment = """
             The first 64 bits of the [SHA-256](https://en.wikipedia.org/wiki/SHA-2)
@@ -607,9 +607,9 @@ alias {
           name = "sha256Int"
         }, "base64", new {
           location {
-            line = 1175
+            line = 1177
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1175"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1177"
           }
           docComment = "The Base64 encoding of this string's UTF-8 byte sequence."
           annotations = List()
@@ -617,9 +617,9 @@ alias {
           name = "base64"
         }, "base64Decoded", new {
           location {
-            line = 1183
+            line = 1185
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1183"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1185"
           }
           docComment = """
             The inverse of [base64].
@@ -634,9 +634,9 @@ alias {
           name = "base64Decoded"
         }, "base64DecodedBytes", new {
           location {
-            line = 1192
+            line = 1194
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1192"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1194"
           }
           docComment = """
             Converts this base64-format string into [Bytes].
@@ -653,9 +653,9 @@ alias {
           name = "base64DecodedBytes"
         }, "chars", new {
           location {
-            line = 1200
+            line = 1202
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1200"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1202"
           }
           docComment = """
             The Unicode characters in this string.
@@ -670,9 +670,9 @@ alias {
           name = "chars"
         }, "codePoints", new {
           location {
-            line = 1208
+            line = 1210
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1208"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1210"
           }
           docComment = """
             The Unicode code points in this string.
@@ -688,9 +688,9 @@ alias {
         })
         methods = Map("getOrNull", new {
           location {
-            line = 1220
+            line = 1222
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1220"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1222"
           }
           docComment = """
             Returns the character at [index], or [null] if [index] is out of range.
@@ -713,9 +713,9 @@ alias {
           })
         }, "substring", new {
           location {
-            line = 1234
+            line = 1236
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1234"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1236"
           }
           docComment = """
             Returns the substring from [start] until [exclusiveEnd].
@@ -742,9 +742,9 @@ alias {
           })
         }, "substringOrNull", new {
           location {
-            line = 1252
+            line = 1254
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1252"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1254"
           }
           docComment = """
             Returns the substring from [start] until [exclusiveEnd].
@@ -775,9 +775,9 @@ alias {
           })
         }, "repeat", new {
           location {
-            line = 1262
+            line = 1264
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1262"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1264"
           }
           docComment = """
             Concatenates [count] copies of this string.
@@ -798,9 +798,9 @@ alias {
           })
         }, "contains", new {
           location {
-            line = 1265
+            line = 1267
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1265"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1267"
           }
           docComment = "Tells whether this string contains [pattern]."
           annotations = List()
@@ -812,9 +812,9 @@ alias {
           })
         }, "matches", new {
           location {
-            line = 1269
+            line = 1271
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1269"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1271"
           }
           docComment = "Tells whether this string matches [regex] in its entirety."
           annotations = List(new {
@@ -830,9 +830,9 @@ alias {
           })
         }, "startsWith", new {
           location {
-            line = 1272
+            line = 1274
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1272"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1274"
           }
           docComment = "Tells whether this string starts with [pattern]."
           annotations = List()
@@ -844,9 +844,9 @@ alias {
           })
         }, "endsWith", new {
           location {
-            line = 1275
+            line = 1277
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1275"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1277"
           }
           docComment = "Tells whether this string ends with [pattern]."
           annotations = List()
@@ -858,9 +858,9 @@ alias {
           })
         }, "indexOf", new {
           location {
-            line = 1281
+            line = 1283
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1281"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1283"
           }
           docComment = """
             Returns the zero-based index of the first occurrence of [pattern]
@@ -877,9 +877,9 @@ alias {
           })
         }, "indexOfOrNull", new {
           location {
-            line = 1285
+            line = 1287
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1285"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1287"
           }
           docComment = """
             Returns the zero-based index of the first occurrence of [pattern]
@@ -894,9 +894,9 @@ alias {
           })
         }, "lastIndexOf", new {
           location {
-            line = 1291
+            line = 1293
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1291"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1293"
           }
           docComment = """
             Returns the zero-based index of the last occurrence of [pattern]
@@ -913,9 +913,9 @@ alias {
           })
         }, "lastIndexOfOrNull", new {
           location {
-            line = 1295
+            line = 1297
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1295"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1297"
           }
           docComment = """
             Returns the zero-based index of the last occurrence of [pattern]
@@ -930,9 +930,9 @@ alias {
           })
         }, "take", new {
           location {
-            line = 1301
+            line = 1303
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1301"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1303"
           }
           docComment = """
             Returns the first [n] characters of this string.
@@ -952,9 +952,9 @@ alias {
           })
         }, "takeWhile", new {
           location {
-            line = 1304
+            line = 1306
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1304"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1306"
           }
           docComment = "Returns the longest prefix of this string that satisfies [predicate]."
           annotations = List()
@@ -966,9 +966,9 @@ alias {
           })
         }, "takeLast", new {
           location {
-            line = 1309
+            line = 1311
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1309"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1311"
           }
           docComment = """
             Returns the last [n] characters of this string.
@@ -984,9 +984,9 @@ alias {
           })
         }, "takeLastWhile", new {
           location {
-            line = 1312
+            line = 1314
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1312"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1314"
           }
           docComment = "Returns the longest suffix of this string that satisfies [predicate]."
           annotations = List()
@@ -998,9 +998,9 @@ alias {
           })
         }, "drop", new {
           location {
-            line = 1318
+            line = 1320
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1318"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1320"
           }
           docComment = """
             Removes the first [n] characters of this string.
@@ -1020,9 +1020,9 @@ alias {
           })
         }, "dropWhile", new {
           location {
-            line = 1322
+            line = 1324
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1322"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1324"
           }
           docComment = "Removes the longest prefix of this string that satisfies [predicate]."
           annotations = List(new {
@@ -1038,9 +1038,9 @@ alias {
           })
         }, "dropLast", new {
           location {
-            line = 1328
+            line = 1330
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1328"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1330"
           }
           docComment = """
             Removes the last [n] characters of this string.
@@ -1060,9 +1060,9 @@ alias {
           })
         }, "dropLastWhile", new {
           location {
-            line = 1332
+            line = 1334
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1332"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1334"
           }
           docComment = "Removes the longest suffix of this string that satisfies [predicate]."
           annotations = List(new {
@@ -1078,9 +1078,9 @@ alias {
           })
         }, "replaceFirst", new {
           location {
-            line = 1337
+            line = 1339
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1337"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1339"
           }
           docComment = """
             Replaces the first occurrence of [pattern] in this string with [replacement].
@@ -1098,9 +1098,9 @@ alias {
           })
         }, "replaceLast", new {
           location {
-            line = 1342
+            line = 1344
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1342"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1344"
           }
           docComment = """
             Replaces the last occurrence of [pattern] in this string with [replacement].
@@ -1118,9 +1118,9 @@ alias {
           })
         }, "replaceAll", new {
           location {
-            line = 1347
+            line = 1349
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1347"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1349"
           }
           docComment = """
             Replaces all occurrences of [pattern] in this string with [replacement].
@@ -1138,9 +1138,9 @@ alias {
           })
         }, "replaceFirstMapped", new {
           location {
-            line = 1352
+            line = 1354
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1352"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1354"
           }
           docComment = """
             Replaces the first occurrence of [pattern] in this string with the return value of [mapper].
@@ -1158,9 +1158,9 @@ alias {
           })
         }, "replaceLastMapped", new {
           location {
-            line = 1357
+            line = 1359
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1357"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1359"
           }
           docComment = """
             Replaces the last occurrence of [pattern] in this string with the return value of [mapper].
@@ -1178,9 +1178,9 @@ alias {
           })
         }, "replaceAllMapped", new {
           location {
-            line = 1362
+            line = 1364
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1362"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1364"
           }
           docComment = """
             Replaces all occurrences of [pattern] in this string with the return value of [mapper].
@@ -1198,9 +1198,9 @@ alias {
           })
         }, "replaceRange", new {
           location {
-            line = 1367
+            line = 1369
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1367"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1369"
           }
           docComment = """
             Replaces the characters between [start] and [exclusiveEnd] with [replacement].
@@ -1220,9 +1220,9 @@ alias {
           })
         }, "toUpperCase", new {
           location {
-            line = 1370
+            line = 1372
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1370"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1372"
           }
           docComment = "Performs a locale-independent character-by-character conversion of this string to uppercase."
           annotations = List()
@@ -1232,9 +1232,9 @@ alias {
           parameters = Map()
         }, "toLowerCase", new {
           location {
-            line = 1373
+            line = 1375
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1373"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1375"
           }
           docComment = "Performs a locale-independent character-by-character conversion of this string to lowercase."
           annotations = List()
@@ -1244,9 +1244,9 @@ alias {
           parameters = Map()
         }, "reverse", new {
           location {
-            line = 1376
+            line = 1378
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1376"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1378"
           }
           docComment = "Reverses the order of characters in this string."
           annotations = List()
@@ -1256,9 +1256,9 @@ alias {
           parameters = Map()
         }, "trim", new {
           location {
-            line = 1380
+            line = 1382
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1380"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1382"
           }
           docComment = "Removes any leading and trailing characters with Unicode property \"White_Space\" from this string."
           annotations = List(new {
@@ -1272,9 +1272,9 @@ alias {
           parameters = Map()
         }, "trimStart", new {
           location {
-            line = 1384
+            line = 1386
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1384"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1386"
           }
           docComment = "Removes any leading characters with Unicode property \"White_Space\" from this string."
           annotations = List(new {
@@ -1292,9 +1292,9 @@ alias {
           parameters = Map()
         }, "trimEnd", new {
           location {
-            line = 1388
+            line = 1390
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1388"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1390"
           }
           docComment = "Removes any trailing characters with Unicode property \"White_Space\" from this string."
           annotations = List(new {
@@ -1312,9 +1312,9 @@ alias {
           parameters = Map()
         }, "padStart", new {
           location {
-            line = 1394
+            line = 1396
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1394"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1396"
           }
           docComment = """
             Increases the length of this string to [width] by adding leading [char]s.
@@ -1336,9 +1336,9 @@ alias {
           })
         }, "padEnd", new {
           location {
-            line = 1400
+            line = 1402
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1400"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1402"
           }
           docComment = """
             Increases the length of this string to [width] by adding trailing [char]s.
@@ -1360,9 +1360,9 @@ alias {
           })
         }, "split", new {
           location {
-            line = 1403
+            line = 1405
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1403"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1405"
           }
           docComment = "Splits this string around matches of [pattern]."
           annotations = List()
@@ -1374,9 +1374,9 @@ alias {
           })
         }, "splitLimit", new {
           location {
-            line = 1418
+            line = 1420
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1418"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1420"
           }
           docComment = """
             Splits this string matches of [pattern], up to [limit] substrings.
@@ -1405,9 +1405,9 @@ alias {
           })
         }, "capitalize", new {
           location {
-            line = 1428
+            line = 1430
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1428"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1430"
           }
           docComment = """
             Converts the first character of this string to title case.
@@ -1426,9 +1426,9 @@ alias {
           parameters = Map()
         }, "decapitalize", new {
           location {
-            line = 1438
+            line = 1440
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1438"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1440"
           }
           docComment = """
             Converts the first character of this string to lower case.
@@ -1447,9 +1447,9 @@ alias {
           parameters = Map()
         }, "toInt", new {
           location {
-            line = 1444
+            line = 1446
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1444"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1446"
           }
           docComment = """
             Parses this string as a signed decimal (base 10) integer.
@@ -1464,9 +1464,9 @@ alias {
           parameters = Map()
         }, "toIntOrNull", new {
           location {
-            line = 1450
+            line = 1452
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1450"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1452"
           }
           docComment = """
             Parses this string as a signed decimal (base 10) integer.
@@ -1481,9 +1481,9 @@ alias {
           parameters = Map()
         }, "toFloat", new {
           location {
-            line = 1455
+            line = 1457
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1455"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1457"
           }
           docComment = """
             Parses this string as a floating point number.
@@ -1497,9 +1497,9 @@ alias {
           parameters = Map()
         }, "toFloatOrNull", new {
           location {
-            line = 1460
+            line = 1462
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1460"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1462"
           }
           docComment = """
             Parses this string as a floating point number.
@@ -1513,9 +1513,9 @@ alias {
           parameters = Map()
         }, "toBoolean", new {
           location {
-            line = 1465
+            line = 1467
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1465"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1467"
           }
           docComment = """
             Parses `"true"` to [true] and `"false"` to [false] (case-insensitive).
@@ -1529,9 +1529,9 @@ alias {
           parameters = Map()
         }, "toBooleanOrNull", new {
           location {
-            line = 1470
+            line = 1472
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1470"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1472"
           }
           docComment = """
             Parses `"true"` to [true] and `"false"` to [false] (case-insensitive).
@@ -1545,9 +1545,9 @@ alias {
           parameters = Map()
         }, "encodeToBytes", new {
           location {
-            line = 1479
+            line = 1481
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1479"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1481"
           }
           docComment = """
             Returns the bytes of this string, encoded using [charset]. 
@@ -1586,9 +1586,9 @@ rec {
     typeParameters = List()
     superclass {
       location {
-        line = 1773
+        line = 1775
         column = 1
-        displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1773"
+        displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1775"
       }
       docComment = """
         Base class for objects whose members are described by a class definition.
@@ -1601,9 +1601,9 @@ rec {
       typeParameters = List()
       superclass {
         location {
-          line = 1768
+          line = 1770
           column = 1
-          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1768"
+          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1770"
         }
         docComment = """
           A composite value containing members (properties, elements, entries).
@@ -1827,9 +1827,9 @@ rec {
       supertype {
         referent {
           location {
-            line = 1768
+            line = 1770
             column = 1
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1768"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1770"
           }
           docComment = """
             A composite value containing members (properties, elements, entries).
@@ -2055,9 +2055,9 @@ rec {
       properties = Map()
       methods = Map("hasProperty", new {
         location {
-          line = 1775
+          line = 1777
           column = 3
-          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1775"
+          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1777"
         }
         docComment = "Tells if this object has a property with the given [name]."
         annotations = List()
@@ -2069,9 +2069,9 @@ rec {
         })
       }, "getProperty", new {
         location {
-          line = 1780
+          line = 1782
           column = 3
-          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1780"
+          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1782"
         }
         docComment = """
           Returns the value of the property with the given [name].
@@ -2087,9 +2087,9 @@ rec {
         })
       }, "getPropertyOrNull", new {
         location {
-          line = 1785
+          line = 1787
           column = 3
-          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1785"
+          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1787"
         }
         docComment = """
           Returns the value of the property with the given [name].
@@ -2105,9 +2105,9 @@ rec {
         })
       }, "toDynamic", new {
         location {
-          line = 1788
+          line = 1790
           column = 3
-          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1788"
+          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1790"
         }
         docComment = "Converts this object to a [Dynamic] object."
         annotations = List()
@@ -2117,9 +2117,9 @@ rec {
         parameters = Map()
       }, "toMap", new {
         location {
-          line = 1791
+          line = 1793
           column = 3
-          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1791"
+          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1793"
         }
         docComment = "Converts this object to a [Map]."
         annotations = List()
@@ -2132,9 +2132,9 @@ rec {
     supertype {
       referent {
         location {
-          line = 1773
+          line = 1775
           column = 1
-          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1773"
+          displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1775"
         }
         docComment = """
           Base class for objects whose members are described by a class definition.
@@ -2147,9 +2147,9 @@ rec {
         typeParameters = List()
         superclass {
           location {
-            line = 1768
+            line = 1770
             column = 1
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1768"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1770"
           }
           docComment = """
             A composite value containing members (properties, elements, entries).
@@ -2373,9 +2373,9 @@ rec {
         supertype {
           referent {
             location {
-              line = 1768
+              line = 1770
               column = 1
-              displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1768"
+              displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1770"
             }
             docComment = """
               A composite value containing members (properties, elements, entries).
@@ -2601,9 +2601,9 @@ rec {
         properties = Map()
         methods = Map("hasProperty", new {
           location {
-            line = 1775
+            line = 1777
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1775"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1777"
           }
           docComment = "Tells if this object has a property with the given [name]."
           annotations = List()
@@ -2615,9 +2615,9 @@ rec {
           })
         }, "getProperty", new {
           location {
-            line = 1780
+            line = 1782
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1780"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1782"
           }
           docComment = """
             Returns the value of the property with the given [name].
@@ -2633,9 +2633,9 @@ rec {
           })
         }, "getPropertyOrNull", new {
           location {
-            line = 1785
+            line = 1787
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1785"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1787"
           }
           docComment = """
             Returns the value of the property with the given [name].
@@ -2651,9 +2651,9 @@ rec {
           })
         }, "toDynamic", new {
           location {
-            line = 1788
+            line = 1790
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1788"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1790"
           }
           docComment = "Converts this object to a [Dynamic] object."
           annotations = List()
@@ -2663,9 +2663,9 @@ rec {
           parameters = Map()
         }, "toMap", new {
           location {
-            line = 1791
+            line = 1793
             column = 3
-            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1791"
+            displayUri = "https://github.com/apple/pkl/blob/$commitId/stdlib/base.pkl#L1793"
           }
           docComment = "Converts this object to a [Map]."
           annotations = List()
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/output/basic/read.pcf b/pkl-core/src/test/files/LanguageSnippetTests/output/basic/read.pcf
index 4c1a387d..733f2e77 100644
--- a/pkl-core/src/test/files/LanguageSnippetTests/output/basic/read.pcf
+++ b/pkl-core/src/test/files/LanguageSnippetTests/output/basic/read.pcf
@@ -22,7 +22,7 @@ examples {
         file1
         
         """
-      bytes = Bytes(102, 105, 108, 101, 49, 10)
+      base64 = "ZmlsZTEK"
     }
     "Cannot find resource `other.txt`."
     new {
@@ -31,7 +31,7 @@ examples {
         file1
         
         """
-      bytes = Bytes(102, 105, 108, 101, 49, 10)
+      base64 = "ZmlsZTEK"
     }
     null
   }
@@ -42,7 +42,7 @@ examples {
         resource
         
         """
-      bytes = Bytes(114, 101, 115, 111, 117, 114, 99, 101, 10)
+      base64 = "cmVzb3VyY2UK"
     }
     new {
       uri = "file:///$snippetsDir/input-helper/basic/read/resource.txt"
@@ -50,7 +50,7 @@ examples {
         resource
         
         """
-      bytes = Bytes(114, 101, 115, 111, 117, 114, 99, 101, 10)
+      base64 = "cmVzb3VyY2UK"
     }
   }
   ["read non-allowed resource"] {
@@ -64,7 +64,7 @@ examples {
         file1
         
         """
-      bytes = Bytes(102, 105, 108, 101, 49, 10)
+      base64 = "ZmlsZTEK"
     }
     new {
       uri = "file:///$snippetsDir/input/basic/globtest/file2.txt"
@@ -72,7 +72,7 @@ examples {
         file2
         
         """
-      bytes = Bytes(102, 105, 108, 101, 50, 10)
+      base64 = "ZmlsZTIK"
     }
   }
   ["read different resources with same relative resource URI"] {
@@ -82,7 +82,7 @@ examples {
         resource
         
         """
-      bytes = Bytes(114, 101, 115, 111, 117, 114, 99, 101, 10)
+      base64 = "cmVzb3VyY2UK"
     }
     new {
       uri = "file:///$snippetsDir/input-helper/basic/read/child/resource.txt"
@@ -90,7 +90,7 @@ examples {
         child resource
         
         """
-      bytes = Bytes(99, 104, 105, 108, 100, 32, 114, 101, 115, 111, 117, 114, 99, 101, 10)
+      base64 = "Y2hpbGQgcmVzb3VyY2UK"
     }
   }
 }
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/output/basic/readGlob.pcf b/pkl-core/src/test/files/LanguageSnippetTests/output/basic/readGlob.pcf
index 9b52bbf6..c38b647a 100644
--- a/pkl-core/src/test/files/LanguageSnippetTests/output/basic/readGlob.pcf
+++ b/pkl-core/src/test/files/LanguageSnippetTests/output/basic/readGlob.pcf
@@ -4,7 +4,7 @@ examples {
       ["../../input-helper/globtest/module with [weird] ~!characters.pkl"] {
         uri = "file:///$snippetsDir/input-helper/globtest/module%20with%20%5Bweird%5D%20~!characters.pkl"
         text = ""
-        bytes = Bytes()
+        base64 = ""
       }
       ["../../input-helper/globtest/moduleA.pkl"] {
         uri = "file:///$snippetsDir/input-helper/globtest/moduleA.pkl"
@@ -12,7 +12,7 @@ examples {
           name = "moduleA"
           
           """
-        bytes = Bytes(110, 97, 109, 101, 32, 61, 32, 34, 109, 111, 100, 117, 108, 101, 65, 34, 10)
+        base64 = "bmFtZSA9ICJtb2R1bGVBIgo="
       }
       ["../../input-helper/globtest/moduleB.pkl"] {
         uri = "file:///$snippetsDir/input-helper/globtest/moduleB.pkl"
@@ -20,7 +20,7 @@ examples {
           name = "moduleB"
           
           """
-        bytes = Bytes(110, 97, 109, 101, 32, 61, 32, 34, 109, 111, 100, 117, 108, 101, 66, 34, 10)
+        base64 = "bmFtZSA9ICJtb2R1bGVCIgo="
       }
       ["../../input-helper/globtest/child/moduleC.pkl"] {
         uri = "file:///$snippetsDir/input-helper/globtest/child/moduleC.pkl"
@@ -28,7 +28,7 @@ examples {
           name = "child/moduleC"
           
           """
-        bytes = Bytes(110, 97, 109, 101, 32, 61, 32, 34, 99, 104, 105, 108, 100, 47, 109, 111, 100, 117, 108, 101, 67, 34, 10)
+        base64 = "bmFtZSA9ICJjaGlsZC9tb2R1bGVDIgo="
       }
     }
     new {
@@ -38,7 +38,7 @@ examples {
           file1
           
           """
-        bytes = Bytes(102, 105, 108, 101, 49, 10)
+        base64 = "ZmlsZTEK"
       }
       ["globtest/file2.txt"] {
         uri = "file:///$snippetsDir/input/basic/globtest/file2.txt"
@@ -46,7 +46,7 @@ examples {
           file2
           
           """
-        bytes = Bytes(102, 105, 108, 101, 50, 10)
+        base64 = "ZmlsZTIK"
       }
     }
   }
@@ -55,22 +55,22 @@ examples {
       ["../../input-helper/globtest/module with [weird] ~!characters.pkl"] {
         uri = "file:///$snippetsDir/input-helper/globtest/module%20with%20%5Bweird%5D%20~!characters.pkl"
         text = "hi"
-        bytes = Bytes()
+        base64 = ""
       }
       ["../../input-helper/globtest/moduleA.pkl"] {
         uri = "file:///$snippetsDir/input-helper/globtest/moduleA.pkl"
         text = "hi"
-        bytes = Bytes(110, 97, 109, 101, 32, 61, 32, 34, 109, 111, 100, 117, 108, 101, 65, 34, 10)
+        base64 = "bmFtZSA9ICJtb2R1bGVBIgo="
       }
       ["../../input-helper/globtest/moduleB.pkl"] {
         uri = "file:///$snippetsDir/input-helper/globtest/moduleB.pkl"
         text = "hi"
-        bytes = Bytes(110, 97, 109, 101, 32, 61, 32, 34, 109, 111, 100, 117, 108, 101, 66, 34, 10)
+        base64 = "bmFtZSA9ICJtb2R1bGVCIgo="
       }
       ["../../input-helper/globtest/child/moduleC.pkl"] {
         uri = "file:///$snippetsDir/input-helper/globtest/child/moduleC.pkl"
         text = "hi"
-        bytes = Bytes(110, 97, 109, 101, 32, 61, 32, 34, 99, 104, 105, 108, 100, 47, 109, 111, 100, 117, 108, 101, 67, 34, 10)
+        base64 = "bmFtZSA9ICJjaGlsZC9tb2R1bGVDIgo="
       }
     }
   }
@@ -132,7 +132,7 @@ examples {
           favoriteFruit: Fruit
           
           """
-        bytes = Bytes(111, 112, 101, 110, 32, 109, 111, 100, 117, 108, 101, 32, 98, 105, 114, 100, 115, 46, 66, 105, 114, 100, 10, 10, 105, 109, 112, 111, 114, 116, 32, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 70, 114, 117, 105, 116, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 58, 32, 83, 116, 114, 105, 110, 103, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 58, 32, 70, 114, 117, 105, 116, 10)
+        base64 = "b3BlbiBtb2R1bGUgYmlyZHMuQmlyZAoKaW1wb3J0ICJAZnJ1aXRpZXMvRnJ1aXQucGtsIgoKbmFtZTogU3RyaW5nCgpmYXZvcml0ZUZydWl0OiBGcnVpdAo="
       }
       ["package://localhost:0/birds@0.5.0#/allFruit.pkl"] {
         uri = "package://localhost:0/birds@0.5.0#/allFruit.pkl"
@@ -143,7 +143,7 @@ examples {
           fruitFiles = read*("@fruities/catalog/*.pkl")
           
           """
-        bytes = Bytes(109, 111, 100, 117, 108, 101, 32, 98, 105, 114, 100, 115, 46, 97, 108, 108, 70, 114, 117, 105, 116, 10, 10, 102, 114, 117, 105, 116, 32, 61, 32, 105, 109, 112, 111, 114, 116, 42, 40, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 99, 97, 116, 97, 108, 111, 103, 47, 42, 46, 112, 107, 108, 34, 41, 10, 102, 114, 117, 105, 116, 70, 105, 108, 101, 115, 32, 61, 32, 114, 101, 97, 100, 42, 40, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 99, 97, 116, 97, 108, 111, 103, 47, 42, 46, 112, 107, 108, 34, 41, 10)
+        base64 = "bW9kdWxlIGJpcmRzLmFsbEZydWl0CgpmcnVpdCA9IGltcG9ydCooIkBmcnVpdGllcy9jYXRhbG9nLyoucGtsIikKZnJ1aXRGaWxlcyA9IHJlYWQqKCJAZnJ1aXRpZXMvY2F0YWxvZy8qLnBrbCIpCg=="
       }
       ["package://localhost:0/birds@0.5.0#/catalog.pkl"] {
         uri = "package://localhost:0/birds@0.5.0#/catalog.pkl"
@@ -154,7 +154,7 @@ examples {
           catalogFiles = read*("catalog/*.pkl")
           
           """
-        bytes = Bytes(109, 111, 100, 117, 108, 101, 32, 98, 105, 114, 100, 115, 46, 99, 97, 116, 97, 108, 111, 103, 10, 10, 99, 97, 116, 97, 108, 111, 103, 32, 61, 32, 105, 109, 112, 111, 114, 116, 42, 40, 34, 99, 97, 116, 97, 108, 111, 103, 47, 42, 46, 112, 107, 108, 34, 41, 10, 99, 97, 116, 97, 108, 111, 103, 70, 105, 108, 101, 115, 32, 61, 32, 114, 101, 97, 100, 42, 40, 34, 99, 97, 116, 97, 108, 111, 103, 47, 42, 46, 112, 107, 108, 34, 41, 10)
+        base64 = "bW9kdWxlIGJpcmRzLmNhdGFsb2cKCmNhdGFsb2cgPSBpbXBvcnQqKCJjYXRhbG9nLyoucGtsIikKY2F0YWxvZ0ZpbGVzID0gcmVhZCooImNhdGFsb2cvKi5wa2wiKQo="
       }
       ["package://localhost:0/birds@0.5.0#/catalog/Ostrich.pkl"] {
         uri = "package://localhost:0/birds@0.5.0#/catalog/Ostrich.pkl"
@@ -168,7 +168,7 @@ examples {
           }
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 79, 115, 116, 114, 105, 99, 104, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 123, 10, 32, 32, 110, 97, 109, 101, 32, 61, 32, 34, 79, 114, 97, 110, 103, 101, 34, 10, 125, 10)
+        base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCm5hbWUgPSAiT3N0cmljaCIKCmZhdm9yaXRlRnJ1aXQgewogIG5hbWUgPSAiT3JhbmdlIgp9Cg=="
       }
       ["package://localhost:0/birds@0.5.0#/catalog/Swallow.pkl"] {
         uri = "package://localhost:0/birds@0.5.0#/catalog/Swallow.pkl"
@@ -182,7 +182,7 @@ examples {
           favoriteFruit = apple
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 105, 109, 112, 111, 114, 116, 32, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 99, 97, 116, 97, 108, 111, 103, 47, 97, 112, 112, 108, 101, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 83, 119, 97, 108, 108, 111, 119, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 61, 32, 97, 112, 112, 108, 101, 10)
+        base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCmltcG9ydCAiQGZydWl0aWVzL2NhdGFsb2cvYXBwbGUucGtsIgoKbmFtZSA9ICJTd2FsbG93IgoKZmF2b3JpdGVGcnVpdCA9IGFwcGxlCg=="
       }
       ["package://localhost:0/birds@0.5.0#/some/dir/Bird.pkl"] {
         uri = "package://localhost:0/birds@0.5.0#/some/dir/Bird.pkl"
@@ -196,7 +196,7 @@ examples {
           }
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 46, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 66, 105, 114, 100, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 123, 10, 32, 32, 110, 97, 109, 101, 32, 61, 32, 34, 70, 114, 117, 105, 116, 34, 10, 125, 10)
+        base64 = "YW1lbmRzICIuLi4iCgpuYW1lID0gIkJpcmQiCgpmYXZvcml0ZUZydWl0IHsKICBuYW1lID0gIkZydWl0Igp9Cg=="
       }
     }
   }
@@ -208,7 +208,7 @@ examples {
           file1
           
           """
-        bytes = Bytes(102, 105, 108, 101, 49, 10)
+        base64 = "ZmlsZTEK"
       }
       ["globtest/file2.txt"] {
         uri = "file:///$snippetsDir/input/basic/globtest/file2.txt"
@@ -216,7 +216,7 @@ examples {
           file2
           
           """
-        bytes = Bytes(102, 105, 108, 101, 50, 10)
+        base64 = "ZmlsZTIK"
       }
     }
     new {
@@ -226,7 +226,7 @@ examples {
           file1
           
           """
-        bytes = Bytes(102, 105, 108, 101, 49, 10)
+        base64 = "ZmlsZTEK"
       }
     }
     new {
@@ -236,7 +236,7 @@ examples {
           file2
           
           """
-        bytes = Bytes(102, 105, 108, 101, 50, 10)
+        base64 = "ZmlsZTIK"
       }
     }
   }
@@ -248,7 +248,7 @@ examples {
           resource
           
           """
-        bytes = Bytes(114, 101, 115, 111, 117, 114, 99, 101, 10)
+        base64 = "cmVzb3VyY2UK"
       }
     }
     new {
@@ -258,7 +258,7 @@ examples {
           child resource
           
           """
-        bytes = Bytes(99, 104, 105, 108, 100, 32, 114, 101, 115, 111, 117, 114, 99, 101, 10)
+        base64 = "Y2hpbGQgcmVzb3VyY2UK"
       }
     }
   }
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/output/packages/packages1.pcf b/pkl-core/src/test/files/LanguageSnippetTests/output/packages/packages1.pcf
index bfbff47a..ca1d8c68 100644
--- a/pkl-core/src/test/files/LanguageSnippetTests/output/packages/packages1.pcf
+++ b/pkl-core/src/test/files/LanguageSnippetTests/output/packages/packages1.pcf
@@ -40,7 +40,7 @@ examples {
         favoriteFruit: Fruit
         
         """
-      bytes = Bytes(111, 112, 101, 110, 32, 109, 111, 100, 117, 108, 101, 32, 98, 105, 114, 100, 115, 46, 66, 105, 114, 100, 10, 10, 105, 109, 112, 111, 114, 116, 32, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 70, 114, 117, 105, 116, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 58, 32, 83, 116, 114, 105, 110, 103, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 58, 32, 70, 114, 117, 105, 116, 10)
+      base64 = "b3BlbiBtb2R1bGUgYmlyZHMuQmlyZAoKaW1wb3J0ICJAZnJ1aXRpZXMvRnJ1aXQucGtsIgoKbmFtZTogU3RyaW5nCgpmYXZvcml0ZUZydWl0OiBGcnVpdAo="
     }
     new {
       uri = "package://localhost:0/birds@0.5.0#/catalog/Swallow.pkl"
@@ -54,7 +54,7 @@ examples {
         favoriteFruit = apple
         
         """
-      bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 105, 109, 112, 111, 114, 116, 32, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 99, 97, 116, 97, 108, 111, 103, 47, 97, 112, 112, 108, 101, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 83, 119, 97, 108, 108, 111, 119, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 61, 32, 97, 112, 112, 108, 101, 10)
+      base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCmltcG9ydCAiQGZydWl0aWVzL2NhdGFsb2cvYXBwbGUucGtsIgoKbmFtZSA9ICJTd2FsbG93IgoKZmF2b3JpdGVGcnVpdCA9IGFwcGxlCg=="
     }
     new {
       uri = "package://localhost:0/birds@0.5.0#/catalog/Ostrich.pkl"
@@ -68,7 +68,7 @@ examples {
         }
         
         """
-      bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 79, 115, 116, 114, 105, 99, 104, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 123, 10, 32, 32, 110, 97, 109, 101, 32, 61, 32, 34, 79, 114, 97, 110, 103, 101, 34, 10, 125, 10)
+      base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCm5hbWUgPSAiT3N0cmljaCIKCmZhdm9yaXRlRnJ1aXQgewogIG5hbWUgPSAiT3JhbmdlIgp9Cg=="
     }
   }
 }
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/output/packages/packages2.pcf b/pkl-core/src/test/files/LanguageSnippetTests/output/packages/packages2.pcf
index 15239c6b..d4dfd5f0 100644
--- a/pkl-core/src/test/files/LanguageSnippetTests/output/packages/packages2.pcf
+++ b/pkl-core/src/test/files/LanguageSnippetTests/output/packages/packages2.pcf
@@ -52,7 +52,7 @@ examples {
           }
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 79, 115, 116, 114, 105, 99, 104, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 123, 10, 32, 32, 110, 97, 109, 101, 32, 61, 32, 34, 79, 114, 97, 110, 103, 101, 34, 10, 125, 10)
+        base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCm5hbWUgPSAiT3N0cmljaCIKCmZhdm9yaXRlRnJ1aXQgewogIG5hbWUgPSAiT3JhbmdlIgp9Cg=="
       }
       ["package://localhost:0/birds@0.5.0#/catalog/Swallow.pkl"] {
         uri = "package://localhost:0/birds@0.5.0#/catalog/Swallow.pkl"
@@ -66,7 +66,7 @@ examples {
           favoriteFruit = apple
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 105, 109, 112, 111, 114, 116, 32, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 99, 97, 116, 97, 108, 111, 103, 47, 97, 112, 112, 108, 101, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 83, 119, 97, 108, 108, 111, 119, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 61, 32, 97, 112, 112, 108, 101, 10)
+        base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCmltcG9ydCAiQGZydWl0aWVzL2NhdGFsb2cvYXBwbGUucGtsIgoKbmFtZSA9ICJTd2FsbG93IgoKZmF2b3JpdGVGcnVpdCA9IGFwcGxlCg=="
       }
     }
   }
@@ -84,7 +84,7 @@ examples {
           }
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 79, 115, 116, 114, 105, 99, 104, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 123, 10, 32, 32, 110, 97, 109, 101, 32, 61, 32, 34, 79, 114, 97, 110, 103, 101, 34, 10, 125, 10)
+        base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCm5hbWUgPSAiT3N0cmljaCIKCmZhdm9yaXRlRnJ1aXQgewogIG5hbWUgPSAiT3JhbmdlIgp9Cg=="
       }
       ["catalog/Swallow.pkl"] {
         uri = "package://localhost:0/birds@0.5.0#/catalog/Swallow.pkl"
@@ -98,7 +98,7 @@ examples {
           favoriteFruit = apple
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 105, 109, 112, 111, 114, 116, 32, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 99, 97, 116, 97, 108, 111, 103, 47, 97, 112, 112, 108, 101, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 83, 119, 97, 108, 108, 111, 119, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 61, 32, 97, 112, 112, 108, 101, 10)
+        base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCmltcG9ydCAiQGZydWl0aWVzL2NhdGFsb2cvYXBwbGUucGtsIgoKbmFtZSA9ICJTd2FsbG93IgoKZmF2b3JpdGVGcnVpdCA9IGFwcGxlCg=="
       }
     }
   }
@@ -112,7 +112,7 @@ examples {
           name = "Apple"
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 70, 114, 117, 105, 116, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 65, 112, 112, 108, 101, 34, 10)
+        base64 = "YW1lbmRzICIuLi9GcnVpdC5wa2wiCgpuYW1lID0gIkFwcGxlIgo="
       }
     }
   }
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/output/projects/project1/basic.pcf b/pkl-core/src/test/files/LanguageSnippetTests/output/projects/project1/basic.pcf
index 8fd7f6af..44be0a5d 100644
--- a/pkl-core/src/test/files/LanguageSnippetTests/output/projects/project1/basic.pcf
+++ b/pkl-core/src/test/files/LanguageSnippetTests/output/projects/project1/basic.pcf
@@ -44,7 +44,7 @@ examples {
         Swallow.pkl
         
         """
-      bytes = Bytes(79, 115, 116, 114, 105, 99, 104, 46, 112, 107, 108, 10, 83, 119, 97, 108, 108, 111, 119, 46, 112, 107, 108, 10)
+      base64 = "T3N0cmljaC5wa2wKU3dhbGxvdy5wa2wK"
     }
     new {
       uri = "projectpackage://localhost:0/birds@0.5.0#/"
@@ -56,7 +56,7 @@ examples {
         some
         
         """
-      bytes = Bytes(66, 105, 114, 100, 46, 112, 107, 108, 10, 97, 108, 108, 70, 114, 117, 105, 116, 46, 112, 107, 108, 10, 99, 97, 116, 97, 108, 111, 103, 10, 99, 97, 116, 97, 108, 111, 103, 46, 112, 107, 108, 10, 115, 111, 109, 101, 10)
+      base64 = "QmlyZC5wa2wKYWxsRnJ1aXQucGtsCmNhdGFsb2cKY2F0YWxvZy5wa2wKc29tZQo="
     }
   }
 }
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/output/projects/project1/globbing.pcf b/pkl-core/src/test/files/LanguageSnippetTests/output/projects/project1/globbing.pcf
index d9cfccdf..bf425325 100644
--- a/pkl-core/src/test/files/LanguageSnippetTests/output/projects/project1/globbing.pcf
+++ b/pkl-core/src/test/files/LanguageSnippetTests/output/projects/project1/globbing.pcf
@@ -62,7 +62,7 @@ examples {
           }
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 79, 115, 116, 114, 105, 99, 104, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 123, 10, 32, 32, 110, 97, 109, 101, 32, 61, 32, 34, 79, 114, 97, 110, 103, 101, 34, 10, 125, 10)
+        base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCm5hbWUgPSAiT3N0cmljaCIKCmZhdm9yaXRlRnJ1aXQgewogIG5hbWUgPSAiT3JhbmdlIgp9Cg=="
       }
       ["@birds/catalog/Swallow.pkl"] {
         uri = "projectpackage://localhost:0/birds@0.5.0#/catalog/Swallow.pkl"
@@ -76,7 +76,7 @@ examples {
           favoriteFruit = apple
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 105, 109, 112, 111, 114, 116, 32, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 99, 97, 116, 97, 108, 111, 103, 47, 97, 112, 112, 108, 101, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 83, 119, 97, 108, 108, 111, 119, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 61, 32, 97, 112, 112, 108, 101, 10)
+        base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCmltcG9ydCAiQGZydWl0aWVzL2NhdGFsb2cvYXBwbGUucGtsIgoKbmFtZSA9ICJTd2FsbG93IgoKZmF2b3JpdGVGcnVpdCA9IGFwcGxlCg=="
       }
     }
     new {
@@ -92,7 +92,7 @@ examples {
           favoriteFruit: Fruit
           
           """
-        bytes = Bytes(111, 112, 101, 110, 32, 109, 111, 100, 117, 108, 101, 32, 98, 105, 114, 100, 115, 46, 66, 105, 114, 100, 10, 10, 105, 109, 112, 111, 114, 116, 32, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 70, 114, 117, 105, 116, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 58, 32, 83, 116, 114, 105, 110, 103, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 58, 32, 70, 114, 117, 105, 116, 10)
+        base64 = "b3BlbiBtb2R1bGUgYmlyZHMuQmlyZAoKaW1wb3J0ICJAZnJ1aXRpZXMvRnJ1aXQucGtsIgoKbmFtZTogU3RyaW5nCgpmYXZvcml0ZUZydWl0OiBGcnVpdAo="
       }
       ["@birds/allFruit.pkl"] {
         uri = "projectpackage://localhost:0/birds@0.5.0#/allFruit.pkl"
@@ -103,7 +103,7 @@ examples {
           fruitFiles = read*("@fruities/catalog/*.pkl")
           
           """
-        bytes = Bytes(109, 111, 100, 117, 108, 101, 32, 98, 105, 114, 100, 115, 46, 97, 108, 108, 70, 114, 117, 105, 116, 10, 10, 102, 114, 117, 105, 116, 32, 61, 32, 105, 109, 112, 111, 114, 116, 42, 40, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 99, 97, 116, 97, 108, 111, 103, 47, 42, 46, 112, 107, 108, 34, 41, 10, 102, 114, 117, 105, 116, 70, 105, 108, 101, 115, 32, 61, 32, 114, 101, 97, 100, 42, 40, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 99, 97, 116, 97, 108, 111, 103, 47, 42, 46, 112, 107, 108, 34, 41, 10)
+        base64 = "bW9kdWxlIGJpcmRzLmFsbEZydWl0CgpmcnVpdCA9IGltcG9ydCooIkBmcnVpdGllcy9jYXRhbG9nLyoucGtsIikKZnJ1aXRGaWxlcyA9IHJlYWQqKCJAZnJ1aXRpZXMvY2F0YWxvZy8qLnBrbCIpCg=="
       }
       ["@birds/catalog.pkl"] {
         uri = "projectpackage://localhost:0/birds@0.5.0#/catalog.pkl"
@@ -114,7 +114,7 @@ examples {
           catalogFiles = read*("catalog/*.pkl")
           
           """
-        bytes = Bytes(109, 111, 100, 117, 108, 101, 32, 98, 105, 114, 100, 115, 46, 99, 97, 116, 97, 108, 111, 103, 10, 10, 99, 97, 116, 97, 108, 111, 103, 32, 61, 32, 105, 109, 112, 111, 114, 116, 42, 40, 34, 99, 97, 116, 97, 108, 111, 103, 47, 42, 46, 112, 107, 108, 34, 41, 10, 99, 97, 116, 97, 108, 111, 103, 70, 105, 108, 101, 115, 32, 61, 32, 114, 101, 97, 100, 42, 40, 34, 99, 97, 116, 97, 108, 111, 103, 47, 42, 46, 112, 107, 108, 34, 41, 10)
+        base64 = "bW9kdWxlIGJpcmRzLmNhdGFsb2cKCmNhdGFsb2cgPSBpbXBvcnQqKCJjYXRhbG9nLyoucGtsIikKY2F0YWxvZ0ZpbGVzID0gcmVhZCooImNhdGFsb2cvKi5wa2wiKQo="
       }
     }
     new {
@@ -130,7 +130,7 @@ examples {
           favoriteFruit: Fruit
           
           """
-        bytes = Bytes(111, 112, 101, 110, 32, 109, 111, 100, 117, 108, 101, 32, 98, 105, 114, 100, 115, 46, 66, 105, 114, 100, 10, 10, 105, 109, 112, 111, 114, 116, 32, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 70, 114, 117, 105, 116, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 58, 32, 83, 116, 114, 105, 110, 103, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 58, 32, 70, 114, 117, 105, 116, 10)
+        base64 = "b3BlbiBtb2R1bGUgYmlyZHMuQmlyZAoKaW1wb3J0ICJAZnJ1aXRpZXMvRnJ1aXQucGtsIgoKbmFtZTogU3RyaW5nCgpmYXZvcml0ZUZydWl0OiBGcnVpdAo="
       }
       ["@birds/allFruit.pkl"] {
         uri = "projectpackage://localhost:0/birds@0.5.0#/allFruit.pkl"
@@ -141,7 +141,7 @@ examples {
           fruitFiles = read*("@fruities/catalog/*.pkl")
           
           """
-        bytes = Bytes(109, 111, 100, 117, 108, 101, 32, 98, 105, 114, 100, 115, 46, 97, 108, 108, 70, 114, 117, 105, 116, 10, 10, 102, 114, 117, 105, 116, 32, 61, 32, 105, 109, 112, 111, 114, 116, 42, 40, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 99, 97, 116, 97, 108, 111, 103, 47, 42, 46, 112, 107, 108, 34, 41, 10, 102, 114, 117, 105, 116, 70, 105, 108, 101, 115, 32, 61, 32, 114, 101, 97, 100, 42, 40, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 99, 97, 116, 97, 108, 111, 103, 47, 42, 46, 112, 107, 108, 34, 41, 10)
+        base64 = "bW9kdWxlIGJpcmRzLmFsbEZydWl0CgpmcnVpdCA9IGltcG9ydCooIkBmcnVpdGllcy9jYXRhbG9nLyoucGtsIikKZnJ1aXRGaWxlcyA9IHJlYWQqKCJAZnJ1aXRpZXMvY2F0YWxvZy8qLnBrbCIpCg=="
       }
       ["@birds/catalog.pkl"] {
         uri = "projectpackage://localhost:0/birds@0.5.0#/catalog.pkl"
@@ -152,7 +152,7 @@ examples {
           catalogFiles = read*("catalog/*.pkl")
           
           """
-        bytes = Bytes(109, 111, 100, 117, 108, 101, 32, 98, 105, 114, 100, 115, 46, 99, 97, 116, 97, 108, 111, 103, 10, 10, 99, 97, 116, 97, 108, 111, 103, 32, 61, 32, 105, 109, 112, 111, 114, 116, 42, 40, 34, 99, 97, 116, 97, 108, 111, 103, 47, 42, 46, 112, 107, 108, 34, 41, 10, 99, 97, 116, 97, 108, 111, 103, 70, 105, 108, 101, 115, 32, 61, 32, 114, 101, 97, 100, 42, 40, 34, 99, 97, 116, 97, 108, 111, 103, 47, 42, 46, 112, 107, 108, 34, 41, 10)
+        base64 = "bW9kdWxlIGJpcmRzLmNhdGFsb2cKCmNhdGFsb2cgPSBpbXBvcnQqKCJjYXRhbG9nLyoucGtsIikKY2F0YWxvZ0ZpbGVzID0gcmVhZCooImNhdGFsb2cvKi5wa2wiKQo="
       }
       ["@birds/catalog/Ostrich.pkl"] {
         uri = "projectpackage://localhost:0/birds@0.5.0#/catalog/Ostrich.pkl"
@@ -166,7 +166,7 @@ examples {
           }
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 79, 115, 116, 114, 105, 99, 104, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 123, 10, 32, 32, 110, 97, 109, 101, 32, 61, 32, 34, 79, 114, 97, 110, 103, 101, 34, 10, 125, 10)
+        base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCm5hbWUgPSAiT3N0cmljaCIKCmZhdm9yaXRlRnJ1aXQgewogIG5hbWUgPSAiT3JhbmdlIgp9Cg=="
       }
       ["@birds/catalog/Swallow.pkl"] {
         uri = "projectpackage://localhost:0/birds@0.5.0#/catalog/Swallow.pkl"
@@ -180,7 +180,7 @@ examples {
           favoriteFruit = apple
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 105, 109, 112, 111, 114, 116, 32, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 99, 97, 116, 97, 108, 111, 103, 47, 97, 112, 112, 108, 101, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 83, 119, 97, 108, 108, 111, 119, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 61, 32, 97, 112, 112, 108, 101, 10)
+        base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCmltcG9ydCAiQGZydWl0aWVzL2NhdGFsb2cvYXBwbGUucGtsIgoKbmFtZSA9ICJTd2FsbG93IgoKZmF2b3JpdGVGcnVpdCA9IGFwcGxlCg=="
       }
       ["@birds/some/dir/Bird.pkl"] {
         uri = "projectpackage://localhost:0/birds@0.5.0#/some/dir/Bird.pkl"
@@ -194,7 +194,7 @@ examples {
           }
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 46, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 66, 105, 114, 100, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 123, 10, 32, 32, 110, 97, 109, 101, 32, 61, 32, 34, 70, 114, 117, 105, 116, 34, 10, 125, 10)
+        base64 = "YW1lbmRzICIuLi4iCgpuYW1lID0gIkJpcmQiCgpmYXZvcml0ZUZydWl0IHsKICBuYW1lID0gIkZydWl0Igp9Cg=="
       }
     }
   }
@@ -212,7 +212,7 @@ examples {
           }
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 79, 115, 116, 114, 105, 99, 104, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 123, 10, 32, 32, 110, 97, 109, 101, 32, 61, 32, 34, 79, 114, 97, 110, 103, 101, 34, 10, 125, 10)
+        base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCm5hbWUgPSAiT3N0cmljaCIKCmZhdm9yaXRlRnJ1aXQgewogIG5hbWUgPSAiT3JhbmdlIgp9Cg=="
       }
       ["catalog/Swallow.pkl"] {
         uri = "projectpackage://localhost:0/birds@0.5.0#/catalog/Swallow.pkl"
@@ -226,7 +226,7 @@ examples {
           favoriteFruit = apple
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 105, 109, 112, 111, 114, 116, 32, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 99, 97, 116, 97, 108, 111, 103, 47, 97, 112, 112, 108, 101, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 83, 119, 97, 108, 108, 111, 119, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 61, 32, 97, 112, 112, 108, 101, 10)
+        base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCmltcG9ydCAiQGZydWl0aWVzL2NhdGFsb2cvYXBwbGUucGtsIgoKbmFtZSA9ICJTd2FsbG93IgoKZmF2b3JpdGVGcnVpdCA9IGFwcGxlCg=="
       }
     }
   }
@@ -244,7 +244,7 @@ examples {
           }
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 79, 115, 116, 114, 105, 99, 104, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 123, 10, 32, 32, 110, 97, 109, 101, 32, 61, 32, 34, 79, 114, 97, 110, 103, 101, 34, 10, 125, 10)
+        base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCm5hbWUgPSAiT3N0cmljaCIKCmZhdm9yaXRlRnJ1aXQgewogIG5hbWUgPSAiT3JhbmdlIgp9Cg=="
       }
       ["package://localhost:0/birds@0.5.0#/catalog/Swallow.pkl"] {
         uri = "package://localhost:0/birds@0.5.0#/catalog/Swallow.pkl"
@@ -258,7 +258,7 @@ examples {
           favoriteFruit = apple
           
           """
-        bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 46, 46, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 105, 109, 112, 111, 114, 116, 32, 34, 64, 102, 114, 117, 105, 116, 105, 101, 115, 47, 99, 97, 116, 97, 108, 111, 103, 47, 97, 112, 112, 108, 101, 46, 112, 107, 108, 34, 10, 10, 110, 97, 109, 101, 32, 61, 32, 34, 83, 119, 97, 108, 108, 111, 119, 34, 10, 10, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 61, 32, 97, 112, 112, 108, 101, 10)
+        base64 = "YW1lbmRzICIuLi9CaXJkLnBrbCIKCmltcG9ydCAiQGZydWl0aWVzL2NhdGFsb2cvYXBwbGUucGtsIgoKbmFtZSA9ICJTd2FsbG93IgoKZmF2b3JpdGVGcnVpdCA9IGFwcGxlCg=="
       }
     }
   }
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/output/projects/project1/localProjectRead.pcf b/pkl-core/src/test/files/LanguageSnippetTests/output/projects/project1/localProjectRead.pcf
index 032afe2a..d63015a0 100644
--- a/pkl-core/src/test/files/LanguageSnippetTests/output/projects/project1/localProjectRead.pcf
+++ b/pkl-core/src/test/files/LanguageSnippetTests/output/projects/project1/localProjectRead.pcf
@@ -29,7 +29,7 @@ res2 {
       }
       
       """
-    bytes = Bytes(97, 109, 101, 110, 100, 115, 32, 34, 112, 107, 108, 58, 80, 114, 111, 106, 101, 99, 116, 34, 10, 10, 112, 97, 99, 107, 97, 103, 101, 32, 123, 10, 32, 32, 110, 97, 109, 101, 32, 61, 32, 34, 112, 114, 111, 106, 101, 99, 116, 50, 34, 10, 32, 32, 98, 97, 115, 101, 85, 114, 105, 32, 61, 32, 34, 112, 97, 99, 107, 97, 103, 101, 58, 47, 47, 108, 111, 99, 97, 108, 104, 111, 115, 116, 58, 48, 47, 112, 114, 111, 106, 101, 99, 116, 50, 34, 10, 32, 32, 118, 101, 114, 115, 105, 111, 110, 32, 61, 32, 34, 49, 46, 48, 46, 48, 34, 10, 32, 32, 112, 97, 99, 107, 97, 103, 101, 90, 105, 112, 85, 114, 108, 32, 61, 32, 34, 104, 116, 116, 112, 115, 58, 47, 47, 108, 111, 99, 97, 108, 104, 111, 115, 116, 58, 48, 47, 112, 114, 111, 106, 101, 99, 116, 50, 47, 112, 114, 111, 106, 101, 99, 116, 50, 45, 92, 40, 118, 101, 114, 115, 105, 111, 110, 41, 46, 122, 105, 112, 34, 10, 125, 10, 10, 100, 101, 112, 101, 110, 100, 101, 110, 99, 105, 101, 115, 32, 123, 10, 32, 32, 91, 34, 98, 117, 114, 100, 115, 34, 93, 32, 123, 10, 32, 32, 32, 32, 117, 114, 105, 32, 61, 32, 34, 112, 97, 99, 107, 97, 103, 101, 58, 47, 47, 108, 111, 99, 97, 108, 104, 111, 115, 116, 58, 48, 47, 98, 105, 114, 100, 115, 64, 48, 46, 53, 46, 48, 34, 10, 32, 32, 125, 10, 125, 10)
+    base64 = "YW1lbmRzICJwa2w6UHJvamVjdCIKCnBhY2thZ2UgewogIG5hbWUgPSAicHJvamVjdDIiCiAgYmFzZVVyaSA9ICJwYWNrYWdlOi8vbG9jYWxob3N0OjAvcHJvamVjdDIiCiAgdmVyc2lvbiA9ICIxLjAuMCIKICBwYWNrYWdlWmlwVXJsID0gImh0dHBzOi8vbG9jYWxob3N0OjAvcHJvamVjdDIvcHJvamVjdDItXCh2ZXJzaW9uKS56aXAiCn0KCmRlcGVuZGVuY2llcyB7CiAgWyJidXJkcyJdIHsKICAgIHVyaSA9ICJwYWNrYWdlOi8vbG9jYWxob3N0OjAvYmlyZHNAMC41LjAiCiAgfQp9Cg=="
   }
   ["@project2/PklProject.deps.json"] {
     uri = "file:/$snippetsDir/input/projects/project2/PklProject.deps.json"
@@ -55,7 +55,7 @@ res2 {
       }
       
       """
-    bytes = Bytes(123, 10, 32, 32, 34, 115, 99, 104, 101, 109, 97, 86, 101, 114, 115, 105, 111, 110, 34, 58, 32, 49, 44, 10, 32, 32, 34, 114, 101, 115, 111, 108, 118, 101, 100, 68, 101, 112, 101, 110, 100, 101, 110, 99, 105, 101, 115, 34, 58, 32, 123, 10, 32, 32, 32, 32, 34, 112, 97, 99, 107, 97, 103, 101, 58, 47, 47, 108, 111, 99, 97, 108, 104, 111, 115, 116, 58, 48, 47, 98, 105, 114, 100, 115, 64, 48, 34, 58, 32, 123, 10, 32, 32, 32, 32, 32, 32, 34, 116, 121, 112, 101, 34, 58, 32, 34, 114, 101, 109, 111, 116, 101, 34, 44, 10, 32, 32, 32, 32, 32, 32, 34, 117, 114, 105, 34, 58, 32, 34, 112, 114, 111, 106, 101, 99, 116, 112, 97, 99, 107, 97, 103, 101, 58, 47, 47, 108, 111, 99, 97, 108, 104, 111, 115, 116, 58, 48, 47, 98, 105, 114, 100, 115, 64, 48, 46, 53, 46, 48, 34, 44, 10, 32, 32, 32, 32, 32, 32, 34, 99, 104, 101, 99, 107, 115, 117, 109, 115, 34, 58, 32, 123, 10, 32, 32, 32, 32, 32, 32, 32, 32, 34, 115, 104, 97, 50, 53, 54, 34, 58, 32, 34, 36, 115, 107, 105, 112, 67, 104, 101, 99, 107, 115, 117, 109, 86, 101, 114, 105, 102, 105, 99, 97, 116, 105, 111, 110, 34, 10, 32, 32, 32, 32, 32, 32, 125, 10, 32, 32, 32, 32, 125, 44, 10, 32, 32, 32, 32, 34, 112, 97, 99, 107, 97, 103, 101, 58, 47, 47, 108, 111, 99, 97, 108, 104, 111, 115, 116, 58, 48, 47, 102, 114, 117, 105, 116, 64, 49, 34, 58, 32, 123, 10, 32, 32, 32, 32, 32, 32, 34, 116, 121, 112, 101, 34, 58, 32, 34, 114, 101, 109, 111, 116, 101, 34, 44, 10, 32, 32, 32, 32, 32, 32, 34, 117, 114, 105, 34, 58, 32, 34, 112, 114, 111, 106, 101, 99, 116, 112, 97, 99, 107, 97, 103, 101, 58, 47, 47, 108, 111, 99, 97, 108, 104, 111, 115, 116, 58, 48, 47, 102, 114, 117, 105, 116, 64, 49, 46, 49, 46, 48, 34, 44, 10, 32, 32, 32, 32, 32, 32, 34, 99, 104, 101, 99, 107, 115, 117, 109, 115, 34, 58, 32, 123, 10, 32, 32, 32, 32, 32, 32, 32, 32, 34, 115, 104, 97, 50, 53, 54, 34, 58, 32, 34, 36, 115, 107, 105, 112, 67, 104, 101, 99, 107, 115, 117, 109, 86, 101, 114, 105, 102, 105, 99, 97, 116, 105, 111, 110, 34, 10, 32, 32, 32, 32, 32, 32, 125, 10, 32, 32, 32, 32, 125, 10, 32, 32, 125, 10, 125, 10)
+    base64 = "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"
   }
   ["@project2/penguin.pkl"] {
     uri = "file:/$snippetsDir/input/projects/project2/penguin.pkl"
@@ -70,6 +70,6 @@ res2 {
       }
       
       """
-    bytes = Bytes(105, 109, 112, 111, 114, 116, 32, 34, 64, 98, 117, 114, 100, 115, 47, 66, 105, 114, 100, 46, 112, 107, 108, 34, 10, 10, 98, 105, 114, 100, 58, 32, 66, 105, 114, 100, 32, 61, 32, 110, 101, 119, 32, 123, 10, 32, 32, 110, 97, 109, 101, 32, 61, 32, 34, 80, 101, 110, 103, 117, 105, 110, 34, 10, 32, 32, 102, 97, 118, 111, 114, 105, 116, 101, 70, 114, 117, 105, 116, 32, 123, 10, 32, 32, 32, 32, 110, 97, 109, 101, 32, 61, 32, 34, 73, 99, 101, 32, 70, 114, 117, 105, 116, 34, 10, 32, 32, 125, 10, 125, 10)
+    base64 = "aW1wb3J0ICJAYnVyZHMvQmlyZC5wa2wiCgpiaXJkOiBCaXJkID0gbmV3IHsKICBuYW1lID0gIlBlbmd1aW4iCiAgZmF2b3JpdGVGcnVpdCB7CiAgICBuYW1lID0gIkljZSBGcnVpdCIKICB9Cn0K"
   }
 }
diff --git a/pkl-server/src/test/kotlin/org/pkl/server/AbstractServerTest.kt b/pkl-server/src/test/kotlin/org/pkl/server/AbstractServerTest.kt
index 6d644d9b..21a5c320 100644
--- a/pkl-server/src/test/kotlin/org/pkl/server/AbstractServerTest.kt
+++ b/pkl-server/src/test/kotlin/org/pkl/server/AbstractServerTest.kt
@@ -632,7 +632,7 @@ abstract class AbstractServerTest {
             content
             
             $tripleQuote
-          bytes = Bytes(99, 111, 110, 116, 101, 110, 116, 10)
+          base64 = "Y29udGVudAo="
         }
         res2 {
           uri = "modulepath:/dir1/resource1.txt"
@@ -640,7 +640,7 @@ abstract class AbstractServerTest {
             content
             
             $tripleQuote
-          bytes = Bytes(99, 111, 110, 116, 101, 110, 116, 10)
+          base64 = "Y29udGVudAo="
         }
         res3 {
           ressy = "the module2 output"
diff --git a/stdlib/base.pkl b/stdlib/base.pkl
index d0107bc8..72d6961c 100644
--- a/stdlib/base.pkl
+++ b/stdlib/base.pkl
@@ -513,6 +513,9 @@ class PropertiesRenderer extends ValueRenderer {
 /// An external (file, HTTP, etc.) resource.
 ///
 /// Usually, a [Resource] is obtained via a `read()` expression, such as `read("some/file")`.
+///
+/// When created directly, either of [bytes] or [base64] can be set, and the other will be
+/// computed in terms of the set value.
 class Resource {
   /// The URI of this resource.
   uri: Uri
@@ -520,13 +523,12 @@ class Resource {
   /// The text content of this resource.
   text: String
 
+  /// The content of this resource in Base64 encoding.
+  base64: String = bytes.base64
+
   /// The bytes of this resource.
   @Since { version = "0.29.0" }
-  bytes: Bytes
-
-  /// The content of this resource in Base64.
-  @Deprecated { since = "0.29.0"; message = "Use bytes.base64 instead" }
-  hidden base64: String = bytes.base64
+  hidden bytes: Bytes = base64.base64DecodedBytes
 
   /// The [MD5](https://en.wikipedia.org/wiki/MD5)
   /// hash of this resource as hexadecimal string.