Checks that node was build using input `graph`.

        :return: `Build` status.
        :raises GPflowError: Valid passed TensorFlow graph is different from
            used graph in node.

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