export declare function isPotentiallyUnsafeNumberString(mixed: any): mixed is string;
export declare function isFiniteNumberString(mixed: any): mixed is string;
export declare function isIntegerString(mixed: any): mixed is string;
export declare function isGreaterThanString(mixed: any, x: number): mixed is string;
export declare function isGreaterThanOrEqualString(mixed: any, x: number): mixed is string;
export declare function isLessThanString(mixed: any, x: number): mixed is string;
export declare function isLessThanOrEqualString(mixed: any, x: number): mixed is string;
export declare function isRangeString(mixed: any, args: {
    min?: number;
    max?: number;
}): mixed is string;
export declare function isPositiveString(mixed: any): mixed is string;
export declare function isNegativeString(mixed: any): mixed is string;
export declare function isNonNegativeString(mixed: any): mixed is string;
export declare function isNaturalNumberString(mixed: any): mixed is string;
export declare function isOddString(mixed: any): mixed is string;
export declare function isEvenString(mixed: any): mixed is string;
export declare function isNotOneOfString<T extends number>(mixed: any, arr: T[]): mixed is string;
export declare function isLatitudeString(mixed: any): mixed is string;
export declare function isLongitudeString(mixed: any): mixed is string;