Creators.

        Creators are not the authors. These are usually editors, translators,
        narrators, etc.

        :return:
            Returns a list of creators where each is a tuple containing:

                1. The creators name (string).
                2. The creators role (string).

def creators(self):
        """Creators.

        Creators are not the authors. These are usually editors, translators,
        narrators, etc.

        :return:
            Returns a list of creators where each is a tuple containing:

                1. The creators name (string).
                2. The creators role (string).

        """
        # return tuples of name and role
        result = []
        creators = self._safe_get_element('ItemAttributes.Creator')
        if creators is not None:
            for creator in creators:
                role = creator.attrib['Role'] if \
                    'Role' in creator.attrib else None
                result.append((creator.text, role))
        return result