code: def _unpack_user(v):
    
    uv = v.uservalue()
    email = unicode(uv.email().decode('utf-8'))
    auth_domain = unicode(uv.auth_domain().decode('utf-8'))
    obfuscated_gaiaid = uv.obfuscated_gaiaid().decode('utf-8')
    obfuscated_gaiaid = unicode(obfuscated_gaiaid)
  
    federated_identity = None
    if uv.has_federated_identity():
      federated_identity = unicode(
          uv.federated_identity().decode('utf-8'))
  
    value = users.User(email=email,
                       _auth_domain=auth_domain,
                       _user_id=obfuscated_gaiaid,
                       federated_identity=federated_identity)
    return value
docs: Internal helper to unpack a User value from a protocol buffer.