/**
 * Environment configuration type definition
 * Defines the configuration required for GitHub Project Manager
 */
export type EnvConfig = {
    GITHUB_PERSONAL_TOKEN: string;
    PORT: number;
    RUN_SSE: number;
};
/**
 * Load environment configuration from command line arguments
 * @returns Environment configuration
 * @throws {MissingGitHubTokenError} When GitHub token is not provided
 */
export declare function loadEnv(): EnvConfig;