class_docstr: Base tests for `ExperimentIdMiddleware`.
class_docstr_tok: ["Base","tests","for","`","ExperimentIdMiddleware","`","."]
code: def _create_app(self):
      raise NotImplementedError()
  
imports: import json
  import werkzeug
  from werkzeug import test
  from tensorboard import test
  from tensorboard.backend import experiment_id
label_desc: Use image node_id 2 for calling the BaseTest obj's underlying member method code with example usage: obj._create_app() without return types