Allow the given action need.

        :param action: The action to allow.
        :returns: A :class:`invenio_access.models.ActionNeedMixin` instance.

def allow(cls, action, **kwargs):
        """Allow the given action need.

        :param action: The action to allow.
        :returns: A :class:`invenio_access.models.ActionNeedMixin` instance.
        """
        return cls.create(action, exclude=False, **kwargs)