import { Observable, Subject } from "rxjs";
export declare namespace ObservableUtil {
    /** @description
     *  Creates an observable from the given property.
     */
    function CreateFromProperty<T>(property: T | Subject<T> | Observable<T>): Observable<T>;
    /**
     *  @param target The target object.
     *  @param path The target property path.
     *  @description Creates an observable chain from the given property path.
     *
     *  Note: Any property in the path that isn't an Observable or Subject will implicitly be converted to an Observable.
     */
    function CreateFromPropertyPath(target: any, path: string): Observable<any>;
    /**
     * @param target The target object.
     * @param path The target property path.
     * @description Checks if the given property path is dynamic.
     * A path is considered dynamic or non-static if:
     *
     * - It contains any Observables, or Subjects that are not the terminal property in the path.
     * - It does not terminate with a Subject.
     * - It contains optional fields (those that are conditionally evaluated via the `?.` operator).
     */
    function IsDynamicPropertyPath(target: any, path: string): boolean;
    function ResolvePropertyPath(target: any, path: string): Observable<any>;
    function ResolveStaticPropertyPath<T>(target: any, path: string): Subject<T>;
    /**
     * @param target The target object.
     * @param path The target property path.
     * @param value The new value of the property.
     * @param mergeValue Whether or not the newly emitted value should be merged into the last emitted value.
     * @description Traverses the property path for a Subject, and appropriately wraps and emits the given value from the Subject.
     */
    function UpdateDynamicPropertyPathValue<T>(target: any, path: string, value: T, mergeValue?: boolean): void;
}
export interface ObservableUtil {
}