export declare function isMaybeArray(mixed: any): mixed is null | undefined | (any[]);
export declare function isMaybeMinLength(mixed: any, min: number): mixed is null | undefined | (any[]);
export declare function isMaybeMaxLength(mixed: any, max: number): mixed is null | undefined | (any[]);
export declare function isMaybeLength(mixed: any, args: {
    min?: number;
    max?: number;
}): mixed is null | undefined | (any[]);
export declare function isMaybeNonEmpty(mixed: any): mixed is null | undefined | (any[]);
export declare function isMaybeContains(mixed: any, x: any): mixed is null | undefined | (any[]);
export declare function isMaybeNoDuplicate(mixed: any): mixed is null | undefined | (any[]);