export declare const isObject: (value: any) => boolean;
export declare const omitObject: <T extends Record<string | symbol, any>, K extends keyof T>(obj: T, keys: K[]) => Omit<T, K>;
export declare const pickObject: <T extends Record<string | symbol, any>, K extends keyof T>(obj: T, keys: K[]) => Pick<T, K>;
export declare const mergeObject: <T extends Record<string | symbol, any> | undefined>(...objs: T[]) => T;