Enforce positional-only parameters for public functions #18
Description
Several functions in the API Reference are documented as having positional-only parameters but in fact are not declared with those parameters as positional-only in the source code because positional-only parameters require Python 3.8 and trycast currently supports Python 3.7+.
Please declare these functions with actual positional-only parameters once support for Python 3.7 is dropped - scheduled for 27 Jun 2023 - and only Python 3.8+ support remains.