The standard library is a set of Pkl modules versioned and distributed together with the language.
To import a standard library module, use import "pkl:<identifier>".
For example, import "pkl:json" imports the pkl.json module.
The pkl.base module defines the most fundamental properties, methods, and classes for using Pkl.
Its members are automatically available in every module and hence it does not need to be imported.
The default module allowlist (--allowed-modules) grants access to all standard library modules.
The Pkl standard library.