import { Milestone, MilestoneFilters, UpdateMilestone } from '../models/milestones';
import { BaseService } from './base';
/**
 * Service class for managing TestRail milestones.
 */
export declare class MilestoneService extends BaseService {
    /**
     * Returns the list of milestones for a project.
     *
     * API Path: GET index.php?/api/v2/get_milestones/:project_id
     *
     * @param projectId The ID of the project
     * @param filters Optional filters for the milestones list
     * @returns Array of milestones
     * @throws {Error} 400 - Invalid or unknown project
     * @throws {Error} 403 - No access to the project
     */
    getMilestones(projectId: number, filters?: MilestoneFilters): Promise<Milestone[]>;
    /**
     * Returns an existing milestone.
     *
     * API Path: GET index.php?/api/v2/get_milestone/:milestone_id
     *
     * @param milestoneId The ID of the milestone
     * @returns The requested milestone
     * @throws {Error} 400 - Invalid or unknown milestone
     * @throws {Error} 403 - No access to the project
     */
    getMilestone(milestoneId: number): Promise<Milestone>;
    /**
     * Creates a new milestone.
     *
     * API Path: POST index.php?/api/v2/add_milestone/:project_id
     *
     * @param projectId The ID of the project the milestone should be added to
     * @param milestone The milestone to create (name is required)
     * @returns The created milestone
     * @throws {Error} 400 - Invalid or unknown project
     * @throws {Error} 403 - No permissions to add milestones or no access to the project
     */
    addMilestone(projectId: number, milestone: Omit<Milestone, 'id' | 'url'>): Promise<Milestone>;
    /**
     * Updates an existing milestone.
     * Partial updates are supported, i.e. you can submit and update specific fields only.
     *
     * API Path: POST index.php?/api/v2/update_milestone/:milestone_id
     *
     * @param milestoneId The ID of the milestone
     * @param milestone The milestone updates
     * @returns The updated milestone
     * @throws {Error} 400 - Invalid or unknown milestone
     * @throws {Error} 403 - No permissions to modify milestones or no access to the project
     */
    updateMilestone(milestoneId: number, milestone: UpdateMilestone): Promise<Milestone>;
    /**
     * Deletes an existing milestone.
     * Warning: Deleting a milestone cannot be undone.
     *
     * API Path: POST index.php?/api/v2/delete_milestone/:milestone_id
     *
     * @param milestoneId The ID of the milestone
     * @throws {Error} 400 - Invalid or unknown milestone
     * @throws {Error} 403 - No permissions to delete milestones or no access to the project
     */
    deleteMilestone(milestoneId: number): Promise<void>;
}