code: def _run_zero_even_op(self, X):
      op = core.CreateOperator("ZeroEven", ["X"], ["Y"])
      workspace.FeedBlob("X", X)
      workspace.RunOperatorOnce(op)
      Y = workspace.FetchBlob("Y")
      return Y
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  import numpy
  import unittest
  from caffe2.proto import caffe2_pb2
  from caffe2.python import core
  from caffe2.python import workspace
  import detectron.utils.c2
label_desc: Use image node_id 1 for calling the ZeroEvenOpTest obj's underlying member method code with example usage: obj._run_zero_even_op(X) and returns: Y