code: def testConv(self):
      edge_index = tf.constant(
          [[0, 1, 1, 2], [1, 0, 2, 1]], dtype=tf.int32
      )
      x = tf.constant([[-1], [0], [1]], dtype=tf.float32)
      x = [x, x]
      conv = SimpleConv()
      x1 = conv(x, edge_index, size=[3, 3])
  
      with self.test_session():
          self.assertAllEqual([[0.0], [0.0], [0.0]], x1.eval())
  
file_path: euler/tf_euler/python/convolution/conv_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import tensorflow
  from tf_euler.python.convolution import *
  from tf_euler.python.euler_ops import mp_ops
label_desc: Use image node_id 1 for calling the ConvTest obj's underlying member method code with example usage: obj.testConv() without return types