export declare function isArray(mixed: any): mixed is any[];
export declare function isMinLength(mixed: any, min: number): mixed is any[];
export declare function isMaxLength(mixed: any, max: number): mixed is any[];
export declare function isLength(mixed: any, args: {
    min?: number;
    max?: number;
}): mixed is any[];
export declare function isNonEmpty(mixed: any): mixed is any[];
export declare function isContains(mixed: any, x: any): mixed is any[];
export declare function isNoDuplicate(mixed: any): mixed is any[];