code: def __init__(self, query_name: str):
      self.query_name = query_name
      self.sql_query_latency_manager: Optional[Timer] = None
  
imports: from typing import Optional
  import prometheus_client
  from aiohttp import web
  from prometheus_async.aio import time
  from prometheus_client.context_managers import Timer
label_desc: Use image node_id 1 to create a new PrometheusSQLTimer object  with example: obj = PrometheusSQLTimer(query_name)