code: def test_valid(self, pipeline, *args):
      for subexp in args:
          subexp[0].test_valid(pipeline, *subexp[1:])
  
imports: from ._filter_predicate import FilterPredicate
label_desc: Use image node_id 1 for calling the CompoundFilterPredicate obj's underlying member method code with example usage: obj.test_valid(pipeline) without return types