# types ## <ApiType type="Attribute" slug="any-p" symbolName="AnyP" /> AnyP **Type:** <TypeLink type={{"type_str": "ParamSpec('AnyP', default=...)", "description": null, "kind": "simple", "symbol_name": null, "doc_url": null}} /> A parameter specification that defaults to ... ## <ApiType type="Attribute" slug="covariant-t" symbolName="CovariantT" /> CovariantT **Type:** <TypeLink type={{"type_str": "TypeVar('CovariantT', covariant=True)", "description": null, "kind": "simple", "symbol_name": null, "doc_url": null}} /> Type variable for covariant types. ## <ApiType type="Class" slug="dataclass_cls" symbolName="Dataclass" /> Dataclass **Bases:** <TypeLink type={{"type_str": "Protocol", "description": null, "kind": "simple", "symbol_name": "Protocol", "doc_url": "https://docs.python.org/3/library/typing.html#typing.Protocol"}} /> ## <ApiType type="Attribute" slug="jsonable" symbolName="Jsonable" /> Jsonable **Type:** <TypeLink type={{"type_str": "TypeAlias", "description": null, "kind": "simple", "symbol_name": "TypeAlias", "doc_url": null}} /> Simple type alias for JSON-serializable types. ## <ApiType type="Attribute" slug="jsonable-covariant-t" symbolName="JsonableCovariantT" /> JsonableCovariantT **Type:** <TypeLink type={{"type_str": "TypeVar('JsonableCovariantT', covariant=True, bound=Jsonable, default=Jsonable)", "description": null, "kind": "simple", "symbol_name": null, "doc_url": null}} /> Type variable for covariant types that are Jsonable. ## <ApiType type="Attribute" slug="jsonable-t" symbolName="JsonableT" /> JsonableT **Type:** <TypeLink type={{"type_str": "TypeVar('JsonableT', bound=Jsonable)", "description": null, "kind": "simple", "symbol_name": null, "doc_url": null}} /> Type variable for tool output types. This TypeVar represents the return type of tool functions, which must be serializable to JSON (bound to Jsonable) for LLM consumption. ## <ApiType type="Attribute" slug="none-type" symbolName="NoneType" /> NoneType **Type:** <TypeLink type={{"type_str": "type(None)", "description": null, "kind": "simple", "symbol_name": "type(None)", "doc_url": null}} /> ## <ApiType type="Attribute" slug="p" symbolName="P" /> P **Type:** <TypeLink type={{"type_str": "ParamSpec('P')", "description": null, "kind": "simple", "symbol_name": "ParamSpec('P')", "doc_url": null}} /> Parameter specification for function signatures. This ParamSpec is used to preserve function parameter types and signatures when wrapping functions with decorators or creating generic callable types. It captures both positional and keyword arguments (*args, **kwargs) while maintaining their original types.