class_docstr: Tests the default Werkzeug implementation of TensorBoardServer.
  
  Mostly useful for IPv4/IPv6 testing. This test should run with only
  IPv4, only IPv6, and both IPv4 and IPv6 enabled.
code: def make_flags(self, **kwargs):
      flags = argparse.Namespace()
      kwargs.setdefault("host", None)
      kwargs.setdefault("bind_all", kwargs["host"] is None)
      kwargs.setdefault("reuse_port", False)
      for k, v in kwargs.items():
          setattr(flags, k, v)
      return flags
  
imports: import argparse
  import io
  import sys
  from unittest import mock
  from tensorboard import program
  from tensorboard import test
  from tensorboard.plugins import base_plugin
  from tensorboard.plugins.core import core_plugin
label_desc: Use image node_id 1 for calling the WerkzeugServerTest obj's underlying member method code with example usage: obj.make_flags() and returns: flags