new_contents: import asyncio
  import aiomysql
  
  
  async def test_example(loop):
      pool = await aiomysql.create_pool(host='127.0.0.1', port=3306,
                                        user='root', password='',
                                        db='mysql', loop=loop)
      async with pool.acquire() as conn:
          async with conn.cursor() as cur:
              await cur.execute("SELECT 42;")
              print(cur.description)
              (r,) = await cur.fetchone()
              assert r == 42
      pool.close()
      await pool.wait_closed()
  
  
  loop = asyncio.get_event_loop()
  loop.run_until_complete(test_example(loop))
  
subject: add await pool example