import { TemplateRef, InjectionToken } from '@angular/core';
/**
 * Injection token that can be used to reference instances of `RDragPlaceholder`. It serves as
 * alternative token to the actual `RDragPlaceholder` class which could cause unnecessary
 * retention of the class and its directive metadata.
 */
export declare const R_DRAG_PLACEHOLDER: InjectionToken<RDragPlaceholder<any>>;
/**
 * Element that will be used as a template for the placeholder of a RDrag when
 * it is being dragged. The placeholder is displayed in place of the element being dragged.
 */
export declare class RDragPlaceholder<T = any> {
    templateRef: TemplateRef<T>;
    /** Context data to be added to the placeholder template instance. */
    data: T;
    constructor(templateRef: TemplateRef<T>);
}
