code: def should_invoke_op_callbacks():
      """Determine if op callbacks are present and should be invoked.
  
      Returns:
        A thread-local result (boolean) indicating whether any op callback(s) exist
        and should be invoked.
      """
      ctx = context.context()
      return ctx.op_callbacks and not ctx.invoking_op_callbacks
  
imports: from tensorflow.python.eager import context
  from tensorflow.python.eager import execute
label_desc: Use image node_id 2 for calling a global function with example usage: should_invoke_op_callbacks() and returns: unknown