def register(self, prefix, mapping):
    if not prefix.endswith('_'):
      prefix += '_'
    handle = self._registrations.get(prefix)
    if handle is None:
      handle = ConfigHandle(prefix, self)
      self._registrations[prefix] = handle
    handle._update_defaults(mapping)
    return handle
Register a set of configuration names.
dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/api/lib_config.py/LibConfigRegistry.register