export declare function promisePotentiallyUnsafeDate(name: string, mixed: any): Promise<Date>;
export declare function promiseValidDate(name: string, mixed: any): Promise<Date>;
export declare function promiseBefore(name: string, mixed: any, x: Date): Promise<Date>;
export declare function promiseBeforeHandler(x: Date): (name: string, mixed: any) => Promise<Date>;
export declare function promiseAfter(name: string, mixed: any, x: Date): Promise<Date>;
export declare function promiseAfterHandler(x: Date): (name: string, mixed: any) => Promise<Date>;
export declare function promiseBeforeOrAt(name: string, mixed: any, x: Date): Promise<Date>;
export declare function promiseBeforeOrAtHandler(x: Date): (name: string, mixed: any) => Promise<Date>;
export declare function promiseAfterOrAt(name: string, mixed: any, x: Date): Promise<Date>;
export declare function promiseAfterOrAtHandler(x: Date): (name: string, mixed: any) => Promise<Date>;
export declare function promiseRange(name: string, mixed: any, args: {
    min?: Date;
    max?: Date;
}): Promise<Date>;
export declare function promiseRangeHandler(args: {
    min?: Date;
    max?: Date;
}): (name: string, mixed: any) => Promise<Date>;