export declare const envConfig: {
    CENTRAL_DB_HOST: string;
    CENTRAL_DB_PORT: number;
    CENTRAL_DB_USER: string;
    CENTRAL_DB_PASSWORD: string;
    CENTRAL_DB_NAME: string;
    CENTRAL_DB_TABLE: string;
    LOG_LEVEL: string;
    CONNECTION_CACHE_MAX_SIZE: number;
    CONNECTION_CACHE_TTL_MS: number;
    CONFIG_CACHE_TTL_MS: number;
    POSTGRES_POOL_MAX: number;
    POSTGRES_POOL_MIN: number;
    MYSQL_POOL_MAX: number;
    MYSQL_QUEUE_LIMIT: number;
    QUERY_TIMEOUT_MS: number;
    POSTGRES_QUERY_TIMEOUT_MS: number;
    MYSQL_QUERY_TIMEOUT_MS: number;
    MONGODB_QUERY_TIMEOUT_MS: number;
    CASSANDRA_QUERY_TIMEOUT_MS: number;
    CONNECTION_VALIDATION_TTL_MS: number;
    CONNECTION_RETRY_ATTEMPTS: number;
    CONNECTION_RETRY_DELAY_MS: number;
    RATE_LIMIT_MAX_REQUESTS: number;
    RATE_LIMIT_WINDOW_MS: number;
};