/**
 * GitHub Provider Implementation (v1.1.0)
 */
import type { GitProvider, PRMetadata, ProviderConfig } from './index.js';
export declare class GitHubProvider implements GitProvider {
    private config;
    private baseUrl;
    constructor(config: ProviderConfig);
    verifySignature(payload: string, signature: string): boolean;
    parseWebhook(event: any, headers: Record<string, string>): Promise<PRMetadata | null>;
    fetchFiles(prId: number | string, repo: string): Promise<string[]>;
    fetchDiff(prId: number | string, repo: string): Promise<string>;
    postComment(prId: number | string, repo: string, body: string): Promise<void>;
    fetchComments(prId: number | string, repo: string): Promise<import('../edm/comments.js').PRComment[]>;
    addLabel(prId: number | string, repo: string, label: string): Promise<void>;
    requestReviewers(prId: number | string, repo: string, reviewers: string[]): Promise<void>;
    private getHeaders;
    private post;
}
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