declare function compose<TResult, TArg, TResult1>(f2: (arg: TResult1) => TResult, f1: (arg: TArg) => TResult1): (arg: TArg) => TResult;
declare function compose<TResult, TArg, TResult1, TResult2>(f3: (arg: TResult2) => TResult, f2: (arg: TResult1) => TResult2, f1: (arg: TArg) => TResult1): (arg: TArg) => TResult;