<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def add_client_to_manifest(self, client_id, client_secret, manifest):
 """ Add the client credentials to the specified manifest. """

        assert self.is_admin, "Must authenticate() as admin to create client"
        return self.uaac.add_client_to_manifest(client_id, client_secret,
                manifest)