Returns all the Policies under the Identity namespace.

        Returns:
            (list): A list containing all the Policies under the Identity
                namespace.

def get_policies(self):
        """Returns all the Policies under the Identity namespace.

        Returns:
            (list): A list containing all the Policies under the Identity
                namespace.
        """

        prefix = _IDENTITY_NS + _POLICY_NS
        policylist_list = [
            _create_from_bytes(d, identity_pb2.PolicyList)
            for _, d in self._state_view.leaves(prefix=prefix)
        ]
        policies = []
        for policy_list in policylist_list:
            for policy in policy_list.policies:
                policies.append(policy)
        return sorted(policies, key=lambda p: p.name)