import { ElementRef, EventEmitter, OnChanges, SimpleChanges } from '@angular/core';
export declare class ContentModelDirective implements OnChanges {
    private elementRef;
    contentModel: string;
    contentModelChange: EventEmitter<string>;
    constructor(elementRef: ElementRef);
    ngOnChanges(changes: SimpleChanges): void;
    onBlur(): void;
    onKeypress(event: KeyboardEvent): void;
    private emitContentModelChange();
    private refresh();
}