def extract_from(
        cls,
        parameterset: ParameterSet | Sequence[object] | object,
        force_tuple: bool = False,
    ) -> ParameterSet:
        """Extract from an object or objects.

        :param parameterset:
            A legacy style parameterset that may or may not be a tuple,
            and may or may not be wrapped into a mess of mark objects.

        :param force_tuple:
            Enforce tuple wrapping so single argument tuple values
            don't get decomposed and break tests.
        """
        if isinstance(parameterset, cls):
            return parameterset
        if force_tuple:
            return cls.param(parameterset)
        else:
            # TODO: Refactor to fix this type-ignore. Currently the following
            # passes type-checking but crashes:
            #
            #   @pytest.mark.parametrize(('x', 'y'), [1, 2])
            #   def test_foo(x, y): pass
            return cls(parameterset, marks=[], id=None)  # type: ignore[arg-type]
Extract from an object or objects.

        :param parameterset:
            A legacy style parameterset that may or may not be a tuple,
            and may or may not be wrapped into a mess of mark objects.

        :param force_tuple:
            Enforce tuple wrapping so single argument tuple values
            don't get decomposed and break tests.
        
src/_pytest/mark/structures.py