–– Pkl Error ––
Cannot reference property `a` from here because it is not `const`.

x | const b = this.a
              ^^^^^^
at constExplicitThis#B.b (file:///$snippetsDir/input/errors/const/constExplicitThis.pkl)

To fix, do either of:
1. Add modifier `const` to property `a`
2. Self-import this module, and reference this property from the import.

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