class_docstr: Text Plugin for TensorBoard.
code: def tags_route(self, request):
      ctx = plugin_util.context(request.environ)
      experiment = plugin_util.experiment_id(request.environ)
      index = self.index_impl(ctx, experiment)
      return http_util.Respond(request, index, "application/json")
  
imports: import textwrap
  import numpy
  from werkzeug import wrappers
  from tensorboard import plugin_util
  from tensorboard.backend import http_util
  from tensorboard.data import provider
  from tensorboard.plugins import base_plugin
  from tensorboard.plugins.text import metadata
label_desc: Use image node_id 5 for calling the TextPlugin obj's underlying member method code with example usage: obj.tags_route(request) and returns: http_util