export declare const getEmptyValue: (field: any) => null | undefined;
export declare const getDateValue: (value: [string, string] | null, index: 0 | 1) => string | null;
export declare const isFilterSame: (obj: {
    [key: string]: any;
}, obj2: {
    [key: string]: any;
}) => boolean;
export declare const filterInvalidAttribute: (obj: {
    [key: string]: any;
}) => {
    [key: string]: any;
};
/**
 * 对象扁平化 {a:{b:'v'}}  = >  {b:'v'}
 *
 * @param {*} object
 */
export declare function flattenObject(object: Object): {
    [key: string]: any;
};
/**
 * 对象扁平化 {a:{b:'v'}}  = >  {b:'v'}
 *
 * @param {*} object
 */
export declare function SearchVOToFilter(object: {
    [key: string]: any;
}): {
    [key: string]: any;
};