code: def test_pow():
      a = 3
      b = 4
      check("a**b", 3**4)
  
file_path: tensor-sensor/testing/test_tree_eval.py
imports: from tsensor.parsing import *
  import tsensor.ast
  import sys
  import numpy
label_desc: Use image node_id 10 for calling a global function with example usage: test_pow() without return types