export declare function getTarget(options: [], fieldName: string): any;
export declare function setByField(options: [], fieldName: string, path: string, value: any): any;
export declare function isHasByField(options: [], fieldName: string, path: string): boolean;
export declare function insertByField(options: [], fieldName: string, path: string, value: any, positions: number): any;
export declare function emptysByField(options: [], fieldName: string, path: string): any;
export declare function getByField(options: [], fieldName: string, path: string, defaultValue: any): any;
export declare function delByField(options: [], fieldName: string, path: string): any;