code: def len_call_dynamic(x):
      def gen_len():
          return len
  
      l = gen_len()
      return l(x)
  
file_path: tensorflow/tensorflow/python/autograph/tests/call_to_builtin_function_test.py
imports: import unittest
  import tensorflow
  from tensorflow.python.autograph.tests import reference_test_base
label_desc: Use image node_id 8 for calling a global function with example usage: len_call_dynamic(x) and returns: l, len