import { Observable } from 'rxjs';
import { OverlayRef } from '@angular/cdk/overlay';
import { MdcSnackbarContainer } from './snackbar-container';
/** Event that is emitted when a snackbar is dismissed. */
export interface MdcSnackbarDismissReason {
    /** Whether the snackbar was dismissed using the action button. */
    action?: boolean;
    /** Whether the snackbar was dismissed using the dismiss icon button. */
    dismiss?: boolean;
}
/**
 * Reference to a snackbar dispatched from the snackbar service.
 */
export declare class MdcSnackbarRef<T> {
    containerInstance: MdcSnackbarContainer;
    private _overlayRef;
    /** The instance of the component making up the content of the snackbar. */
    instance: T;
    componentInstance: MdcSnackbarContainer;
    /** Whether the snackbar was dismissed using the action button. */
    private _dismissedReason?;
    /** Subject for notifying the user that the snackbar has been dismissed. */
    private readonly _afterDismiss;
    constructor(containerInstance: MdcSnackbarContainer, _overlayRef: OverlayRef);
    /** Gets an observable that is notified when the snackbar is finished closing. */
    afterDismiss(): Observable<MdcSnackbarDismissReason | string>;
    dismiss(reason?: MdcSnackbarDismissReason | string): void;
    /** Cleans up the DOM after closing. */
    private _finishDismiss;
}