code: def get_var_name(d):
      return [var.name for var in d]
  
imports: import functools
  import unittest
  from absl.testing import parameterized
  import numpy
  from tensorflow.core.function.capture import free_vars_detect
  from tensorflow.python.util import tf_decorator
label_desc: Use image node_id 1 for calling a global function with example usage: get_var_name(d) and returns: unknown