Pyre Extensions

Pyre Extensions is a Python library offering type system extensions designed specifically for use with the Pyre type checker. Currently at version 0.0.32 and classified as 'Alpha' development status, it provides advanced typing constructs like `ParameterSpecification`, `none_throws`, and a type-safe `safe_json` module. Its release cadence is closely tied to the development and releases of the main Pyre type checker.