code: def test_multiple_lambda_w_same_line_num_and_args(self, fn):
      func_map = free_vars_detect._detect_function_free_vars(fn)
      self.assertEmpty(func_map)
  
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 8 for calling the FreeVarDetectionTest obj's underlying member method code with example usage: obj.test_multiple_lambda_w_same_line_num_and_args(fn) without return types