ts-sdk-send-fax.ts

import * as fs from "fs";

// Builds the url: '/account/~/extension/~/fax', and make a POST request to it
rc.account().extension().fax().post({
	to: [{ phoneNumber: "{receiverPhoneNumber}" }],
	faxResolution: 'High'
}, [    // Second argument is an array of attachments, attachment can be string, Blob, node readable stream.
		"{Message text}",
		fs.createReadStream("{filePath}")   // In node only
	]);