import { CdkAccordion } from '@angular/cdk/accordion';
import { InjectionToken } from '@angular/core';
import { TsExpansionPanelTriggerComponent } from '../trigger/expansion-panel-trigger.component';
/**
 * Base interface for a {@link TsAccordionComponent}
 */
export interface TsAccordionBase extends CdkAccordion {
    /**
     * Handle keyboard events coming in from the panel triggers
     */
    handleTriggerKeydown: (event: KeyboardEvent) => void;
    /**
     * Handle focus events on the panel triggers
     */
    handleTriggerFocus: (trigger: TsExpansionPanelTriggerComponent) => void;
    /**
     * Determine if the toggle icon should be hidden
     */
    hideToggle: boolean;
}
/**
 * Token used to provide a {@link TsAccordionComponent} to {@link TsExpansionPanelComponent}.
 *
 * Used primarily to avoid circular imports between `TsAccordionComponent` and `TsExpansionPanelComponent`.
 */
export declare const TS_ACCORDION: InjectionToken<TsAccordionBase>;