--- /dev/null
+export = asPromise;\r
+\r
+type asPromiseCallback = (error: Error | null, ...params: any[]) => {};\r
+\r
+/**\r
+ * Returns a promise from a node-style callback function.\r
+ * @memberof util\r
+ * @param {asPromiseCallback} fn Function to call\r
+ * @param {*} ctx Function context\r
+ * @param {...*} params Function arguments\r
+ * @returns {Promise<*>} Promisified function\r
+ */\r
+declare function asPromise(fn: asPromiseCallback, ctx: any, ...params: any[]): Promise<any>;\r