import { ChangeDetectorRef, ElementRef, QueryList } from '@angular/core';
import { TsCheckboxComponent } from '@terminus/ui/checkbox';
import { TsOptionComponent, TsOptionParentComponent } from './option.component';
/**
 * Component that is used to group instances of {@link TsOptionComponent}s
 *
 * @example
 * <ts-select-optgroup
 *              id="my-id"
 *              [isDisabled]="true"
 *              label="My optgroup"
 * ></ts-select-optgroup>
 *
 * <example-url>https://goo.gl/ieUPaG</example-url>
 */
export declare class TsOptgroupComponent {
    private changeDetectorRef;
    elementRef: ElementRef;
    parent: TsOptionParentComponent;
    /**
     * A flag signifying all child options are selected
     */
    allSelected: boolean;
    /**
     * Unique id for the underlying label
     */
    labelId: string;
    /**
     * A flag signifying some of the child options are selected
     */
    someSelected: boolean;
    /**
     * Define the default component ID
     */
    protected uid: string;
    /**
     * Access the checkbox instance
     */
    checkbox: TsCheckboxComponent;
    /**
     * Access the list of options
     */
    optgroupOptions: QueryList<TsOptionComponent>;
    /**
     * Define an ID for the component
     *
     * @param value
     */
    set id(value: string);
    get id(): string;
    protected _id: string;
    /**
     * Define if the group is disabled
     */
    isDisabled: boolean;
    /**
     * Label for the option group
     */
    label: string | undefined;
    constructor(changeDetectorRef: ChangeDetectorRef, elementRef: ElementRef, parent: TsOptionParentComponent);
    /**
     * Toggle all options
     */
    toggle(): void;
    /**
     * Allow others to trigger count updates and CDR detection
     */
    triggerChangeDetection(): void;
}