uploadPagesFromURL(sourceUrl, sourceRange, contentLength, range, options) {
        return this.client.sendOperationRequest({ sourceUrl, sourceRange, contentLength, range, options }, uploadPagesFromURLOperationSpec);
    }
The Upload Pages operation writes a range of pages to a page blob where the contents are read from a
URL
@param sourceUrl Specify a URL to the copy source.
@param sourceRange Bytes of source data in the specified range. The length of this range should
                   match the ContentLength header and x-ms-range/Range destination range header.
@param contentLength The length of the request.
@param range The range of bytes to which the source range would be written. The range should be 512
             aligned and range-end is required.
@param options The options parameters.