code: def remove_prefix(s, prefix):
      assert s.startswith(prefix), (prefix, s)
      return s.removeprefix(prefix)
  
imports: import secrets
  from concurrent.futures import ThreadPoolExecutor
  import pprint
  import asyncio
  from hailtop.aiotools import LocalAsyncFS, Transfer, Copier
  from hailtop.aiotools.router_fs import RouterAsyncFS
label_desc: Use image node_id 1 for calling a global function with example usage: remove_prefix(s, prefix) and returns: s