(self)
return self._deferred is None
Return whether the context manager has caught any exceptions.

        Returns:
            :obj:`True` if no exceptions are caught, :obj:`False` otherwise.
Return whether the context manager has caught any exceptions.
Return whether the context manager has caught any exceptions .
def is_successful(self) -> bool:
        """Return whether the context manager has caught any exceptions.

        Returns:
            :obj:`True` if no exceptions are caught, :obj:`False` otherwise.

        """
        return self._deferred is None
def is_successful ( self ) -> bool : return self . _deferred is None