import sql from "mssql";
import type { DatabaseConfig, ConnectionState } from "../types.js";
export declare function connectPool(config: DatabaseConfig): Promise<void>;
export declare function disconnectPool(): Promise<void>;
export declare function getPool(): sql.ConnectionPool | null;
export declare function requirePool(): sql.ConnectionPool;
export declare function getConnectionState(): ConnectionState;
export declare function closePoolOnShutdown(): Promise<void>;