export declare function isArrayOfMaybeHasKeys<T extends string>(mixed: any, keys: T[]): mixed is ((null | undefined | ({
    [key: string]: any;
})) | null | undefined)[];
export declare function isArrayOfMaybeNotHasKeys<T extends string>(mixed: any, keys: T[]): mixed is ((null | undefined | ({
    [key: string]: any;
})) | null | undefined)[];