/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { IterableDiffer, IterableDiffers, OnChanges, SimpleChanges, TemplateRef } from "@angular/core";
import * as i0 from "@angular/core";
/**
 * The row template that can be used by the mat-table. Should not be used outside of the
 * material library.
 */
export declare const CDK_ROW_TEMPLATE = "<ng-container cdkCellOutlet></ng-container>";
/**
 * Base class for the CdkHeaderRowDef and CdkRowDef that handles checking their columns inputs
 * for changes and notifying the table.
 */
export declare abstract class BaseRowDef implements OnChanges {
    /** @docs-private */ template: TemplateRef<any>;
    protected _differs: IterableDiffers;
    /** The columns to be displayed on this row. */
    columns: Iterable<string>;
    /** Differ used to check if any changes were made to the columns. */
    protected _columnsDiffer: IterableDiffer<any>;
    constructor(
    /** @docs-private */ template: TemplateRef<any>, _differs: IterableDiffers);
    ngOnChanges(changes: SimpleChanges): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<BaseRowDef, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<BaseRowDef, never, never, {}, {}, never>;
}
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