–– Pkl Error ––
Cannot extend external class `Any`.

x | class Person extends Any
                         ^^^
at extendExternalClass#Person (file:///$snippetsDir/input/errors/extendExternalClass.pkl)

External classes can only be extended by standard library classes.

xxx | renderer.renderDocument(value)
      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
at pkl.base#Module.output.text (pkl:base)

xxx | if (renderer is BytesRenderer) renderer.renderDocument(value) else text.encodeToBytes("UTF-8")
                                                                         ^^^^
at pkl.base#Module.output.bytes (pkl:base)
