def get_node_list(self):
node_objs = list()<EOL>for node, obj_dict_list in self.obj_dict['<STR_LIT>'].items():<EOL><INDENT>node_objs.extend( [ Node( obj_dict = obj_d ) for obj_d in obj_dict_list ] )<EOL><DEDENT>return node_objs<EOL>
Get the list of Node instances.

        This method returns the list of Node instances
        composing the graph.