import { AbstractControl } from '@angular/forms';
/**
 *
 * @param source 源复制对象
 * @param other 待合并对象
 * @returns 将待合并对象中 value 为真值的 key-value 合并到 source 中返回新对象
 */
export declare function mergeIfValueTruthy<T, K>(source: T, other: K): T | (T & K);
export declare function getRootCloudAnnotationAppLink(annotationKey: string): string;
export declare function keyValueFormTableRequiredValidatorFn(control: AbstractControl): {
    required: boolean;
};
export declare const placeObjectValues: (condition: boolean, value: Record<string, unknown>) => Record<string, unknown>;