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- Fixed a bug that could cause `cls`-based functions to to ignore timeout signals.

* `volume get` performance is improved for large (> 100MB) files

* Support for function parameters in methods decorated with `exit` has been deprecated. Previously, exit methods were required to accept three arguments containing exception information (akin to `__exit__` in the context manager protocol). However, due to a bug, these arguments were always null. Going forward, `exit` methods are expected to have no parameters.

* Function calls can now be cancelled without killing the container running the inputs. This allows new inputs by different function calls to the same function to be picked up immediately without having to cold-start new containers after cancelling calls.

- An `InvalidError` is now raised when a lifecycle decorator (`build`, `enter`, or `exit`) is used in conjunction with `method`. Previously, this was undefined and could produce confusing failures.