Delete an identity from its name or id

        :param: a zobjects.Identity object with name or id defined or a string
        of the identity's name

def delete_identity(self, identity):
        """ Delete an identity from its name or id

        :param: a zobjects.Identity object with name or id defined or a string
        of the identity's name
        """
        if isinstance(identity, zobjects.Identity):
            self.request(
                'DeleteIdentity', {'identity': identity.to_selector()})
        else:
            self.request('DeleteIdentity', {'identity': {'name': identity}})