Leandro Hirt

Learn Python assert_type and reveal_type to inspect inference, test typed APIs, and prevent static typing regressions.

Learn Python get_type_hints to resolve forward references, preserve Annotated metadata, and inspect functions and classes safely.

Learn Python runtime_checkable to test Protocols with isinstance, understand its limits, and design safer structural contracts.

Learn Python Unpack to type **kwargs with TypedDict, expand variadic tuples, and preserve precise callable signatures.

Learn Python Required and NotRequired to control mandatory and optional TypedDict keys without confusing absence with None.

Learn Python ReadOnly to protect TypedDict fields, model stable response contracts, and prevent accidental writes during static analysis.

Learn Python TypeAliasType to create explicit aliases, inspect them at runtime, and model reusable generic APIs safely.

Learn Python overload for precise signatures with Literal, None, generics, methods, and return types that depend on arguments.