FastAPI MCP Server

from __future__ import annotations import enum import typing as t class Sentinel(enum.Enum): """Enum used to define sentinel values. .. seealso:: `PEP 661 - Sentinel Values <https://peps.python.org/pep-0661/>`_. """ UNSET = object() FLAG_NEEDS_VALUE = object() def __repr__(self) -> str: return f"{self.__class__.__name__}.{self.name}" UNSET = Sentinel.UNSET """Sentinel used to indicate that a value is not set.""" FLAG_NEEDS_VALUE = Sentinel.FLAG_NEEDS_VALUE """Sentinel used to indicate an option was passed as a flag without a value but is not a flag option. ``Option.consume_value`` uses this to prompt or use the ``flag_value``. """ T_UNSET = t.Literal[UNSET] # type: ignore[valid-type] """Type hint for the :data:`UNSET` sentinel value.""" T_FLAG_NEEDS_VALUE = t.Literal[FLAG_NEEDS_VALUE] # type: ignore[valid-type] """Type hint for the :data:`FLAG_NEEDS_VALUE` sentinel value."""