use platform (global) type for AbortSignal.
Holders of an AbortSignal object may query if the associated operation has been aborted and register an onabort handler.
https://developer.mozilla.org/en-US/docs/Web/API/AbortSignal
Readonly
Whether the action represented by this signal has been cancelled.
A function to be invoked when the action represented by this signal has been cancelled.
Deprecated
use platform (global) type for AbortSignal.
Holders of an AbortSignal object may query if the associated operation has been aborted and register an onabort handler.
See
https://developer.mozilla.org/en-US/docs/Web/API/AbortSignal