import { EventArgs } from "./event-args";
/**
 * Defines a class that represents the arguments for events that notify when properties change.
 */
export declare class PropertyChangedEventArgs<T> extends EventArgs {
    private _propertyName;
    private _newPropertyValue;
    /**
     * Creates a new object that represents the event arguments for a property changed event.
     * @param sender The object whose property has changed.
     * @param propertyName The name of the property that changed.
     * @param newPropertyValue The new value that the property now possesses.
     */
    constructor(sender: any, propertyName: string, newPropertyValue: any);
    /**
     * Gets the name of the property that changed.
     */
    readonly propertyName: string;
    /**
     * Gets the value that the property now has.
     */
    readonly newPropertyValue: any;
}