isAsyncDisposable()function

isAsyncDisposable(v: unknown): v is AsyncDisposable

Param	Type
`v`	`unknown`	The value to test. required

Return
`v is AsyncDisposable`	`true` if `v` has a `[Symbol.asyncDispose]` method, narrowing its type to `AsyncDisposable`.

Is an unknown value an async disposable object?