code: def testParseTensorNameWithNoOutputSlot(self):
      op_name, slot = debug_data_multiplexer.parse_tensor_name(
          "MatMul_1"
      )
      self.assertEqual(op_name, "MatMul_1")
      self.assertEqual(slot, 0)
  
file_path: tensorboard/tensorboard/plugins/debugger_v2/debug_data_multiplexer_test.py
imports: import threading
  import time
  import tensorflow
  from tensorboard.plugins.debugger_v2 import debug_data_multiplexer
label_desc: Use image node_id 1 for calling the ParseTensorNameTest obj's underlying member method code with example usage: obj.testParseTensorNameWithNoOutputSlot() without return types