/**
 *              Copyright (c) 2025 Visa, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 **/
import { BooleanInput } from '@angular/cdk/coercion';
import { AfterContentInit } from '@angular/core';
import { TableDirective } from '../table/table.directive';
import * as i0 from "@angular/core";
export declare class ThDirective implements AfterContentInit {
    private tableDirective;
    private _cellHeaderClass;
    /**
     * Provides custom class(es) for custom styling.
     */
    class: string;
    get hostClasses(): string;
    /**
     * Alternate header for when there are two levels of headers (group headers).
     */
    get groupHeader(): boolean;
    set groupHeader(value: BooleanInput);
    _groupHeader: boolean;
    constructor(tableDirective: TableDirective);
    ngAfterContentInit(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ThDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<ThDirective, "[v-th]", never, { "class": { "alias": "class"; "required": false; }; "groupHeader": { "alias": "groupHeader"; "required": false; }; }, {}, never, never, true, never>;
}