docs: def is_built_coherence(self, graph=None):
          """
          Checks that node was build using input `graph`.
  
          :return: `Build` status.
          :raises GPflowError: Valid passed TensorFlow graph is different from
              used graph in node.
          """
          graph = self.enquire_graph(graph=graph)
          is_built = self.is_built(graph)
          if is_built is Build.NOT_COMPATIBLE_GRAPH:
              raise GPflowError('Tensor "{}" uses different graph.'.format(self.pathname))
          return is_built