code: def ops_whitelist(graph, include_ops=standard_include_ops):
      keep_nodes = [
          node.name for node in graph.nodes if node.op in include_ops
      ]
      return graph.filter(keep_nodes)
  
label_desc: Use image node_id 1 for calling a global function with example usage: ops_whitelist(graph, include_ops) and returns: graph