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from concurrent.futures import ThreadPoolExecutor, as_completed
from typing import Callable, List, Optional, TypeVar
from .config import Config
from .env import Environment
T = TypeVar("T")
R = TypeVar("R")
def parallelize(
worker: Callable[[T], R],
items: List[T],
env: Environment,
executor: Optional[ThreadPoolExecutor] = None,
) -> List[R]:
if executor is None:
executor = ThreadPoolExecutor(max_workers=Config.max_workers)
with executor as exec:
futures = [exec.submit(worker, item) for item in items]
env.logger.info(f"submitted {len(futures)} tasks to executor ₰˜.༄")
return [f.result() for f in as_completed(futures)]
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