class_docstr: A mixin class to be used in tests for launch code using `serialization`.
class_docstr_tok: ["A","mixin","class","to","be","used","in","tests","for","launch","code","using","`","serialization","`","."]
code: def _launch(self):
      raise NotImplementedError(
          "Any child class should override _get_launch."
      )
  
imports: import functools
  import threading
  from absl.testing import absltest
  import cloudpickle
  from launchpad import program
  from launchpad.launch import serialization
  from launchpad.nodes.python import node
label_desc: Use image node_id 1 for calling the ErrorOnSerializationMixin obj's underlying member method code with example usage: obj._launch() without return types