import { type ShutdownAwareTransformer } from "https://deno.land/x/shutdown_aware_transform_stream@1.0.0/mod.ts";
An object that defines the behaviour of a ShutdownAwareTransformStream.
It behaves in the same way as a normal TransformStream Transformer,
except that it can have a close() method, and the Controller received by
its methods is a ShutdownAwareTransformStreamController.
Properties
Called when the stream is created, before any other Transformer methods.
Called after the final chunk has been processed by transform().
Called with each chunk passing through the stream.
Called when the stream has shutdown, either due to an error or end-of-input.
Never called more than once, even if an error occurs as the stream closes
from end-of-input. To distinguish between end-of-input and stream errors,
controller.signal.aborted will be true when an error occured, and
controller.signal.reason will be the error.