import type { InstanceVercel } from "../../../../../utils/instanceVercel.js";
import type { EnvVar } from "./vercel-types";
/**
 * Gets an environment variable from a Vercel project.
 */
export declare function getVercelEnvVar(vercelInstance: InstanceVercel, projectId: string, envVarId: string): Promise<EnvVar | undefined>;
/**
 * Handles rate limit errors with retries.
 */
export declare function withRateLimit<T>(fn: () => Promise<T>, retries?: number): Promise<T>;