function loadWeightsAsArrayBuffer(_x, _x2) {
	  return _loadWeightsAsArrayBuffer.apply(this, arguments);
	}
Reads binary weights data from a number of URLs.

@param fetchURLs URLs to send the HTTP requests at, using `fetch` calls.
@param requestOptions RequestInit (options) for the HTTP requests.
@param fetchFunc Optional overriding value for the `window.fetch` function.
@param onProgress Optional, progress callback function, fired periodically
  before the load is completed.
@returns A `Promise` of an Array of `ArrayBuffer`. The Array has the same
  length as `fetchURLs`.