code: def check_result(self, result, length=0):
      if length == 0:
          length = len(result)
      return np.all(
          list(
              map(
                  lambda i: np.allclose(result[i], self.output),
                  range(0, length),
              )
          )
      )
  
imports: import os
  import tarfile
  import tempfile
  import shutil
  from unittest import TestCase
  import numpy
  from bigdl.dllib.feature.dataset.base import maybe_download
  from bigdl.dllib.nncontext import init_nncontext
  from bigdl.orca.data import SparkXShards
  from bigdl.orca.learn.openvino import Estimator
label_desc: Use image node_id 3 for calling the TestEstimatorForOpenVINO obj's underlying member method code with example usage: obj.check_result(result, length) and returns: np