docstr: Get all component tabs supported by readers in Api.
docstr_tok: ["Get","all","component","tabs","supported","by","readers","in","Api","."]
code: def component_tabs(self):
      """
      Get all component tabs supported by readers in Api.
      """
      tabs = set()
      tabs.update(self._reader.component_tabs(update=True))
      tabs.update(self._graph_reader.component_tabs(update=True))
      return tabs
  
imports: import functools
  import gzip
  import json
  import os
  from io import BytesIO
  from flask import request
  from visualdl import LogReader
  from visualdl.python.cache import MemCache
  from visualdl.reader.graph_reader import GraphReader
  from visualdl.server import lib
  from visualdl.server.client_manager import ClientManager
  from visualdl.server.log import logger
label_desc: Use image node_id 5 for calling the Api obj's underlying member method code with example usage: obj.component_tabs() and returns: tabs