new_contents: import asyncio
  import aiomysql
  
  
  async def test_example(loop):
      conn = await aiomysql.connect(host='127.0.0.1', port=3306,
                                    user='root', password='',
                                    db='test_pymysql', loop=loop)
  
      async with conn.cursor() as cur:
          await cur.execute('DROP PROCEDURE IF EXISTS myinc;')
          await cur.execute("""CREATE PROCEDURE myinc(p1 INT)
                               BEGIN
                                   SELECT p1 + 1;
                               END""")
  
          await cur.callproc('myinc', [1])
          (ret, ) = await cur.fetchone()
          assert 2, ret
          print(ret)
  
      conn.close()
  
  
  loop = asyncio.get_event_loop()
  loop.run_until_complete(test_example(loop))
  
subject: add await style callproc example