/**
 * GitHub operations via `gh` CLI — all PR/repo API calls go through here.
 */
export declare function isGhInstalled(): Promise<boolean>;
export declare function isGhAuthenticated(): Promise<boolean>;
export declare function getGhUsername(): Promise<string>;
export interface RepoSettings {
    defaultBranch: string;
    allowMergeCommit: boolean;
    allowSquashMerge: boolean;
    allowRebaseMerge: boolean;
    mergeCommitAllowed: boolean;
}
export declare function getRepoSettings(owner: string, repo: string): Promise<RepoSettings>;
export interface PullRequest {
    number: number;
    title: string;
    state: string;
    url: string;
    headBranch: string;
    baseBranch: string;
    isDraft: boolean;
    reviewDecision: string;
    statusCheckRollup: string;
    additions: number;
    deletions: number;
    body: string;
}
export declare function createPR(opts: {
    title: string;
    body: string;
    head: string;
    base: string;
    draft?: boolean;
    reviewer?: string[];
}): Promise<PullRequest>;
export declare function updatePR(number: number, opts: {
    title?: string;
    body?: string;
    base?: string;
}): Promise<void>;
export declare function mergePR(number: number, method?: 'merge' | 'rebase' | 'squash'): Promise<void>;
export declare function closePR(number: number): Promise<void>;
export declare function getPR(number: number): Promise<PullRequest>;
export declare function listPRsForBranches(branches: string[]): Promise<PullRequest[]>;
export declare function addPRComment(number: number, body: string): Promise<void>;
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