import { Connection } from "tedious";
import { ConnectionConfig, WindowsCredentials, NamedConnections } from "../types/index.js";
export declare class ConnectionManager {
    private connections;
    private defaultConnectionString;
    private windowsCredentials;
    private namedConnections;
    constructor();
    private initializeFromEnvironment;
    private loadWindowsCredentials;
    private loadNamedConnections;
    parseConnectionString(connectionString: string, envCredentials?: WindowsCredentials): ConnectionConfig;
    getConnectionString(connectionName?: string, legacyConnectionName?: string): string;
    getConnection(connectionName?: string, legacyConnectionName?: string): Promise<Connection>;
    getNamedConnections(): NamedConnections;
    getDefaultConnectionString(): string | undefined;
    closeAllConnections(): void;
}
export declare function executeQuery(connection: Connection, sql: string): Promise<any[]>;