def get_flow_by_id(self, flow_id):
        """
        Gets an edge (flow) with requested ID.
        Returns a tuple, where first value is node ID, second - a dictionary of all node attributes.

        :param flow_id: string with edge ID.
        """
        tmp_flows = self.diagram_graph.edges(data=True)
        for flow in tmp_flows:
            if flow[2][consts.Consts.id] == flow_id:
                return flow
def get_flow_by_id ( self , flow_id ) : tmp_flows = self . diagram_graph . edges ( data = True ) for flow in tmp_flows : if flow [ 2 ] [ consts . Consts . id ] == flow_id : return flow
Gets an edge (flow) with requested ID.
        Returns a tuple, where first value is node ID, second - a dictionary of all node attributes.

        :param flow_id: string with edge ID.