old_contents: #!/bin/env python
  
  import aiohttp
  
  async def aio_get(aio_session, url, headers=None):
      async with aio_session() as s:
          async with s.get(url, headers=headers) as r:
              if r.status == 200:
                  return await r
              else:
                  return None
  
new_contents: #!/bin/env python
  
  import aiohttp
  
  async def aio_get(aio_session, url, headers=None):
      async with aio_session() as s:
          async with s.get(url, headers=headers) as r:
              if r.status == 200:
                  return r
              else:
                  return None
  
subject: remove unecessary await