import { ChangeDetectorRef, EventEmitter, TemplateRef } from '@angular/core';
import { BooleanInput } from 'ng-zorro-antd/core/types';
export declare class MCollapseComponent {
    private cdr;
    static ngAcceptInputType_mActive: BooleanInput;
    static ngAcceptInputType_mDisabled: BooleanInput;
    mHeader?: string | TemplateRef<void>;
    mExtra?: string | TemplateRef<void>;
    mDisabled: boolean;
    mActive: boolean;
    mExpandedIcon?: string | TemplateRef<void>;
    readonly mActiveChange: EventEmitter<boolean>;
    constructor(cdr: ChangeDetectorRef);
    clickHeader(): void;
    markForCheck(): void;
}