Method from_failure

returns/future.py:1451–1472

Creates ``FutureResult`` from failed value. .. code:: python >>> import anyio >>> from returns.io import IOFailure >>> from returns.future import FutureResult >>> async def main(): ... assert await FutureResult.from_failure(

(
        cls,
        inner_value: _NewErrorType,
    )

    @classmethod
    def from_failure(
        cls,
        inner_value: _NewErrorType,
    ) -> 'FutureResult[Any, _NewErrorType]':
        """
        Creates ``FutureResult`` from failed value.

        .. code:: python

          >>> import anyio
          >>> from returns.io import IOFailure
          >>> from returns.future import FutureResult

          >>> async def main():
          ...     assert await FutureResult.from_failure(
          ...         1,
          ...     ) == IOFailure(1)

          >>> anyio.run(main)

        """
        return FutureResult(async_identity(Failure(inner_value)))


def FutureSuccess(  # noqa: N802