Interface ResolveOnceIf<R, CTX>

interface ResolveOnceIf<R, CTX> {
    get ready(): boolean;
    get value(): R | undefined;
    get error(): Error | undefined;
    get state(): ResolveState;
    setResetAfter(ms?: number): void;
    once<RET>(fn: (arg: OnceActionArg<R, CTX>) => RET): ResultOnce<RET>;
    reset<RET>(fn?: (arg: OnceActionArg<R, CTX>) => RET): ResultOnce<RET>;
    setProcessed(state: StateInstance): void;
}