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- """
- Timer context manager, only used in debug.
- """
- from time import time
- import contextlib
- from typing import Generator
- @contextlib.contextmanager
- def timer(subject: str = "time") -> Generator[None, None, None]:
- """print the elapsed time. (only used in debugging)"""
- start = time()
- yield
- elapsed = time() - start
- elapsed_ms = elapsed * 1000
- print(f"{subject} elapsed {elapsed_ms:.1f}ms")
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