import { Octokit } from '@octokit/rest';
import { graphql } from '@octokit/graphql';
import * as simpleGitImport from 'simple-git';
import type { RateLimitSnapshot } from './types.js';
export declare const CACHE_TTL_MS: number;
export declare const TRAFFIC_CACHE_TTL_MS: number;
export interface CacheEntry<T> {
    data: T;
    timestamp: number;
    sizeBytes: number;
}
export declare class GitHubClient {
    octokit: Octokit | null;
    graphqlWithAuth: typeof graphql | null;
    git: simpleGitImport.SimpleGit;
    latestRateLimit: RateLimitSnapshot | null;
    readonly apiCache: Map<string, CacheEntry<unknown>>;
    private totalCacheBytes;
    private readonly MAX_CACHE_BYTES;
    private readonly MAX_ENTRY_BYTES;
    constructor(workingDir?: string, token?: string);
    isApiAvailable(): boolean;
    getCached(key: string): unknown;
    getCachedWithTtl(key: string, ttlMs: number): unknown;
    setCache(key: string, data: unknown): void;
    invalidateCache(prefix: string): void;
    clearCache(): void;
}
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