export declare function isMaybeDictionaryOfPotentiallyUnsafeDateString(mixed: any): mixed is null | undefined | ({
    [key: string]: string;
});
export declare function isMaybeDictionaryOfValidDateString(mixed: any): mixed is null | undefined | ({
    [key: string]: string;
});
export declare function isMaybeDictionaryOfBeforeString(mixed: any, x: Date): mixed is null | undefined | ({
    [key: string]: string;
});
export declare function isMaybeDictionaryOfAfterString(mixed: any, x: Date): mixed is null | undefined | ({
    [key: string]: string;
});
export declare function isMaybeDictionaryOfBeforeOrAtString(mixed: any, x: Date): mixed is null | undefined | ({
    [key: string]: string;
});
export declare function isMaybeDictionaryOfAfterOrAtString(mixed: any, x: Date): mixed is null | undefined | ({
    [key: string]: string;
});
export declare function isMaybeDictionaryOfRangeString(mixed: any, args: {
    min?: Date;
    max?: Date;
}): mixed is null | undefined | ({
    [key: string]: string;
});