import type { INotifyPropertiesChanged } from './INotifyPropertiesChanged';
import type { IPropertiesChangedEvent } from './IPropertiesChangedEvent';
/**
 * Represents a base view model class providing core features.
 */
export declare abstract class ViewModel implements INotifyPropertiesChanged {
    private readonly _propertiesChangedEvent;
    /**
     * Initializes a new instance of the {@linkcode ViewModel} class.
     */
    constructor();
    /**
     * An event that is raised when one or more properties may have changed.
     */
    get propertiesChanged(): IPropertiesChangedEvent<this>;
    /**
     * Notifies all observers that the provided properties may have changed.
     * @param changedProperty The name of the property that may have changed.
     * @param otherChangedProperties The name of other properties that may have changed.
     */
    protected notifyPropertiesChanged(changedProperty: keyof this, ...otherChangedProperties: readonly (keyof this)[]): void;
}