code: def _initLayerCtors(self):
          '''
          Registration for built-in Layer ctors
          '''
          ctors = {
              'lmdb': s_lmdblayer.LmdbLayer,
              'remote': s_remotelayer.RemoteLayer,
          }
          self.layrctors.update(**ctorsf _initLayerCtors(self):
          '''
          Registration for built-in Layer ctors
          '''
          ctors = {
              'lmdb': s_lmdblayer.LmdbLayer,
              'remote': s_remotelayer.RemoteLayer,
          }
          self.layrctors.update(**ctors)
docs: Registration for built-in Layer ctors