import { VcsClientMergeRequests, type VcsMergeRequestByIidQuery, type VcsMergeRequestsQuery } from '../abstract/vcs-client-merge-requests.js';
import type { VcsMergeRequestChanges, VcsMergeRequestChangesQuery } from '../entities/vcs-merge-request-changes.type.js';
type RequestFn = (path: string, init?: RequestInit) => Promise<unknown>;
/**
 * @purpose Access GitLab Merge Requests.
 * @invariant Error Policy: Network/status errors propagated to caller.
 * @consumer VcsGitlabClient
 */
export declare class VcsGitlabMergeRequests extends VcsClientMergeRequests {
    /** @purpose Bound HTTP request function injected for GitLab API calls */
    protected _request: RequestFn;
    /**
     * @purpose Wire the HTTP request adapter for GitLab merge request endpoints.
     * @param request Authenticated HTTP request function targeting GitLab API.
     */
    constructor(request: RequestFn);
    /**
     * @param query Target project and optional filters.
     * @returns List of merge requests matching the filters.
     * @sideEffect Network: GET /projects/:project/merge_requests
     * @see {VcsClientMergeRequests#getList} in services/vcs-client/abstract/vcs-merge-requests.ts
     */
    getList(query: VcsMergeRequestsQuery): Promise<unknown[]>;
    /**
     * @param query Target project and optional filters.
     * @returns First matching merge request or null.
     * @sideEffect Network: Delegates to getList() with per_page=1 limit.
     * @see {VcsClientMergeRequests#getList} in services/vcs-client/abstract/vcs-merge-requests.ts
     */
    getOne(query: VcsMergeRequestsQuery): Promise<unknown | null>;
    /**
     * @param query Target project and MR IID.
     * @returns Merge request object or null on 404.
     * @sideEffect Network: GET /projects/:project/merge_requests/:iid
     * @see {VcsClientMergeRequests#getList} in services/vcs-client/abstract/vcs-merge-requests.ts
     */
    getByIid(query: VcsMergeRequestByIidQuery): Promise<unknown | null>;
    /**
     * @param query Target repository and MR IID, optional pagination.
     * @returns List of changed files with metadata.
     * @sideEffect Network: GET /projects/:project/merge_requests/:iid/changes
     * @see {VcsClientMergeRequests#getChanges} in services/vcs-client/abstract/vcs-client-merge-requests.ts
     */
    getChanges(query: VcsMergeRequestChangesQuery): Promise<VcsMergeRequestChanges[]>;
}
export {};