code: def testUnwrapSimpleChannelPlaceholder(self):
      int1 = channel.Channel(type=standard_artifacts.Integer)
      self.assertEqual(
          channel_utils.unwrap_simple_channel_placeholder(
              int1.future()[0].value
          ),
          int1,
      )
      self.assertEqual(
          channel_utils.unwrap_simple_channel_placeholder(
              int1.future().value
          ),
          int1,
      )
  
file_path: tfx/tfx/types/channel_utils_test.py
imports: import tensorflow
  from tfx.dsl.placeholder import placeholder
  from tfx.types import artifact
  from tfx.types import channel
  from tfx.types import channel_utils
  from tfx.types import standard_artifacts
label_desc: Use image node_id 7 for calling the ChannelUtilsTest obj's underlying member method code with example usage: obj.testUnwrapSimpleChannelPlaceholder() without return types