import { Connection, FieldInfo, Pool } from 'mysql';
import Migration from "./Migration";
export interface QueryResult {
    readonly results: any[];
    readonly fields: FieldInfo[];
    readonly other?: any;
    foundRows?: number;
}
export declare function query(queryString: string, values?: any, connection?: Connection): Promise<QueryResult>;
export default class MysqlConnectionManager {
    private static currentPool?;
    private static databaseReady;
    private static readonly migrations;
    static registerMigration(migration: (version: number) => Migration): void;
    static prepare(): Promise<void>;
    static get pool(): Pool;
    private static createPool;
    static endPool(): Promise<void>;
    static query(queryString: string, values?: any, connection?: Connection): Promise<QueryResult>;
    static wrapTransaction<T>(transaction: (connection: Connection) => Promise<T>): Promise<T>;
    private static rejectAndRollback;
    private static handleMigrations;
}