import { IntegrationSource } from '../base.js';
import type { SourceOptions, SourceResult } from '../types.js';
/**
 * GitHub source - fetches issues from GitHub repositories
 *
 * Uses the gh CLI for authentication (no API key needed if gh is configured)
 * Falls back to GitHub API with token if gh is not available
 */
export declare class GitHubSource extends IntegrationSource {
    name: string;
    description: string;
    private ghAvailable;
    isAvailable(): Promise<boolean>;
    requiresAuth(): boolean;
    private isGhCliAvailable;
    fetch(identifier: string, options?: SourceOptions): Promise<SourceResult>;
    private parseIdentifier;
    private fetchViaGhCli;
    private fetchViaApi;
    private fetchSingleIssueViaCli;
    private fetchSingleIssueViaApi;
    private formatSingleIssue;
    private formatIssues;
    protected getRequiredCredentialKey(): string;
    getHelp(): string;
}
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