def remove(self, elem):
        """Remove a requirement.

        :param elem: a string or :class:`Requirement` instance.
        """
        if isinstance(elem, text_type):
            for requirement in self:
                if requirement.package == elem:
                    return super(Requirements, self).remove(requirement)
        return super(Requirements, self).remove(elem)
def name(self):
        if self._values['name'] is None:
            return None
        name = str(self._values['name']).strip()
        if name == '':
            raise F5ModuleError(
                "You must specify a name for this module"
            )
        return name