class_docstr: Embedding projector.
class_docstr_tok: ["Embedding","projector","."]
code: def _serve_config(self, request):
      run = request.args.get("run")
      if run is None:
          return Respond(
              request,
              'query parameter "run" is required',
              "text/plain",
              400,
          )
      self._update_configs()
      config = self._configs.get(run)
      if config is None:
          return Respond(
              request, 'Unknown run: "%s"' % run, "text/plain", 400
          )
      return Respond(
          request, json_format.MessageToJson(config), "application/json"
      )
  
imports: import collections
  import functools
  import imghdr
  import mimetypes
  import os
  import threading
  import numpy
  from werkzeug import wrappers
  from google.protobuf import json_format
  from google.protobuf import text_format
  from tensorboard import context
  from tensorboard.backend.event_processing import plugin_asset_util
  from tensorboard.backend.http_util import Respond
  from tensorboard.compat import tf
  from tensorboard.plugins import base_plugin
  from tensorboard.plugins.projector import metadata
  from tensorboard.plugins.projector.projector_config_pb2 import ProjectorConfig
  from tensorboard.util import tb_logging
label_desc: Use image node_id 17 for calling the ProjectorPlugin obj's underlying member method code with example usage: obj._serve_config(request) and returns: Respond, Respond, Respond