/**
 * wraps a promise and returns a tuple of [error, result]
 * @param p Promise
 * @returns [error, result]
 */
export declare const t: <T>(p: Promise<T>) => Promise<[any, T]>;
/** Wraps a variable in a promise. If the variable is already a promise, it is left as-is */
export declare const toPromise: <T>(t: T | Promise<T>) => Promise<T>;