docstr: Flush manager state before each test method execution.
docstr_tok: ["Flush","manager","state","before","each","test","method","execution","."]
code: def setup_method(self):
      """Flush manager state before each test method execution."""
      MANAGER._tables = {}
      MANAGER._views = {}
  
file_path: perspective/python/perspective/perspective/tests/handlers/test_aiohttp_async_mode.py
imports: import asyncio
  import threading
  import pytest
  import random
  from aiohttp import web
  from datetime import datetime
  from perspective import Table, PerspectiveManager, PerspectiveAIOHTTPHandler, aiohttp_websocket
label_desc: Use image node_id 1 for calling the TestPerspectiveAIOHttpHandlerAsyncMode obj's underlying member method code with example usage: obj.setup_method() without return types