code: def __init__(self, shape, axis, rtol=1e-6):
      # rtol (relative tolerance) 1e-6 is default for assert_allclose
      self.shape = shape
      self.axis = axis
      self.rtol = rtol
  
file_path: nnabla/python/benchmark/function/test_cumprod.py
imports: import pytest
  import numpy
  import nnabla.functions
  from function_benchmark import FunctionBenchmark, Inspec
label_desc: Use image node_id 1 to create a new Case object  with example: obj = Case(shape, axis, rtol)