export declare function isArrayOfMaybeString(mixed: any): mixed is ((null | undefined | (string)) | null | undefined)[];
export declare function isArrayOfMaybeMinLength(mixed: any, min: number): mixed is ((null | undefined | (string)) | null | undefined)[];
export declare function isArrayOfMaybeMaxLength(mixed: any, max: number): mixed is ((null | undefined | (string)) | null | undefined)[];
export declare function isArrayOfMaybeLength(mixed: any, args: {
    min?: number;
    max?: number;
}): mixed is ((null | undefined | (string)) | null | undefined)[];
export declare function isArrayOfMaybeNonEmpty(mixed: any): mixed is ((null | undefined | (string)) | null | undefined)[];
export declare function isArrayOfMaybeContains(mixed: any, x: string): mixed is ((null | undefined | (string)) | null | undefined)[];
export declare function isArrayOfMaybeNoDuplicate(mixed: any): mixed is ((null | undefined | (string)) | null | undefined)[];
export declare function isArrayOfMaybeNotAllWhitespace(mixed: any): mixed is ((null | undefined | (string)) | null | undefined)[];
export declare function isArrayOfMaybeNonEmptyAndNotAllWhitespace(mixed: any): mixed is ((null | undefined | (string)) | null | undefined)[];
export declare function isArrayOfMaybeMatch(mixed: any, regex: RegExp): mixed is ((null | undefined | (string)) | null | undefined)[];
export declare function isArrayOfMaybeEmail(mixed: any): mixed is ((null | undefined | (string)) | null | undefined)[];
export declare function isArrayOfMaybeNotOneOf<T extends string>(mixed: any, arr: T[]): mixed is ((null | undefined | (string)) | null | undefined)[];
export declare function isArrayOfMaybeBase64(mixed: any): mixed is ((null | undefined | (string)) | null | undefined)[];
export declare function isArrayOfMaybeJson(mixed: any): mixed is ((null | undefined | (string)) | null | undefined)[];