export declare function assertMaybeDictionaryOfPotentiallyUnsafeDate(name: string, mixed: any): (null | undefined | ({
    [key: string]: Date;
})) | never;
export declare function assertMaybeDictionaryOfValidDate(name: string, mixed: any): (null | undefined | ({
    [key: string]: Date;
})) | never;
export declare function assertMaybeDictionaryOfBefore(name: string, mixed: any, x: Date): (null | undefined | ({
    [key: string]: Date;
})) | never;
export declare function assertMaybeDictionaryOfBeforeHandler(x: Date): (name: string, mixed: any) => (null | undefined | ({
    [key: string]: Date;
})) | never;
export declare function assertMaybeDictionaryOfAfter(name: string, mixed: any, x: Date): (null | undefined | ({
    [key: string]: Date;
})) | never;
export declare function assertMaybeDictionaryOfAfterHandler(x: Date): (name: string, mixed: any) => (null | undefined | ({
    [key: string]: Date;
})) | never;
export declare function assertMaybeDictionaryOfBeforeOrAt(name: string, mixed: any, x: Date): (null | undefined | ({
    [key: string]: Date;
})) | never;
export declare function assertMaybeDictionaryOfBeforeOrAtHandler(x: Date): (name: string, mixed: any) => (null | undefined | ({
    [key: string]: Date;
})) | never;
export declare function assertMaybeDictionaryOfAfterOrAt(name: string, mixed: any, x: Date): (null | undefined | ({
    [key: string]: Date;
})) | never;
export declare function assertMaybeDictionaryOfAfterOrAtHandler(x: Date): (name: string, mixed: any) => (null | undefined | ({
    [key: string]: Date;
})) | never;
export declare function assertMaybeDictionaryOfRange(name: string, mixed: any, args: {
    min?: Date;
    max?: Date;
}): (null | undefined | ({
    [key: string]: Date;
})) | never;
export declare function assertMaybeDictionaryOfRangeHandler(args: {
    min?: Date;
    max?: Date;
}): (name: string, mixed: any) => (null | undefined | ({
    [key: string]: Date;
})) | never;