Missing type declaration for static method `from`

[jordanrastrick]

Hello,

Nice work, it's great to be able to use streaming in a library that might be used in either the back or front end.

One minor thing, the type declaration for the class ReadableStream is missing the static method from. It should look something like:

export class ReadableStream<T> {
  // ...
  static from(iterable: Iterable<T> | AsyncIterable<T>): ReadableStream<T>
  // ...
}

Cheers.