Method param

src/_pytest/mark/structures.py:113–135

(
        cls,
        *values: object,
        marks: MarkDecorator | Collection[MarkDecorator | Mark] = (),
        id: str | _HiddenParam | None = None,
    )

    @classmethod
    def param(
        cls,
        *values: object,
        marks: MarkDecorator | Collection[MarkDecorator | Mark] = (),
        id: str | _HiddenParam | None = None,
    ) -> ParameterSet:
        if isinstance(marks, MarkDecorator):
            marks = (marks,)
        else:
            assert isinstance(marks, collections.abc.Collection)
        if any(i.name == class="st">"usefixtures" for i in marks):
            raise ValueError(
                class="st">"pytest.param cannot add pytest.mark.usefixtures; see "
                class="st">"https://docs.pytest.org/en/stable/reference/reference.htmlclass="cm">#pytest-param"
            )

        if id is not None:
            if not isinstance(id, str) and id is not HIDDEN_PARAM:
                raise TypeError(
                    class="st">"Expected id to be a string or a `pytest.HIDDEN_PARAM` sentinel, "
                    fclass="st">"got {type(id)}: {id!r}",
                )
        return cls(values, marks, id)

    @classmethod
    def extract_from(