code: def assert_adt_len(candidate, fields):
      assert isinstance(candidate, ADT)
      assert len(candidate) == fields
  
imports: import numpy
  import tvm
  from tvm import te
  from tvm import relay
  from tvm.relay.testing import run_as_python
  from tvm.relay.prelude import Prelude
  from tvm.runtime.container import ADT
  from tvm.relay.backend.interpreter import RefValue, ConstructorValue
label_desc: Use image node_id 4 for calling a global function with example usage: assert_adt_len(candidate, fields) without return types