import type { IDisposable } from '../IDisposable';
import type { IClientSideComponentManifest } from '@microsoft/sp-module-interfaces';
/**
 * Used with the {@link SPEvent} system, this interface is implemented by components that
 * can subscribe to events.
 *
 * @remarks
 * ISPEventObserver is an abstraction of the key features that a component must have in order
 * to subscribe to a SharePoint Framework event:  It must have instanceId and componentId
 * information for diagnostics reporting, and it must have a way to notify the event system
 * when the component is disposed, so that its handlers can be automatically removed.
 * Other objects may implement this contract, as long as they meet these requirements.
 *
 * @public
 */
export interface ISPEventObserver extends IDisposable {
    /**
     * The instance identifier for the component.
     *
     * @remarks
     * This will be used for diagnostic reporting, e.g. if the callback function has
     * an uncaught exception
     */
    readonly instanceId: string;
    /**
     * The component identifier, from the component's manifest.
     *
     * @remarks
     * This will be used for diagnostic reporting, e.g. if the callback function has
     * an uncaught exception
     */
    readonly componentId: string;
    /**
     * Optional, only client-side components have a manifest.
     * Provides access to the manifest for the client-side component.
     *
     * @remarks
     * Child classes can override this with more specialized manifest types.
     *
     * @internal
     */
    readonly manifest?: IClientSideComponentManifest;
}
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