code: def get_caching_key(self, ctx):
      del ctx
      return 0
  
imports: import threading
  import gast
  from tensorflow.python.autograph.pyct import transformer
  from tensorflow.python.autograph.pyct import transpiler
  from tensorflow.python.platform import test
label_desc: Use image node_id 1 for calling the TestTranspiler obj's underlying member method code with example usage: obj.get_caching_key(ctx) and returns: int