def get_or_create(self, index_name, index_params=None): 
        resp = self.client.get_or_create_vertex_index(index_name, index_params)
        index = self.index_class(self.client,resp.results)
        self.client.registry.add_index(index_name, index)
        return index
Get a Vertex Index or create it if it doesn't exist.
dataset/ETHPy150Open espeed/bulbs/bulbs/rexster/index.py/VertexIndexProxy.get_or_create