code: def param_dynamic_fn(f, x):
      return f(x)
  
file_path: tensorflow-upstream/tensorflow/python/autograph/tests/call_to_user_function_test.py
imports: import tensorflow
  from tensorflow.python.autograph.tests import reference_test_base
label_desc: Use image node_id 6 for calling a global function with example usage: param_dynamic_fn(f, x) and returns: f