import { Connection } from "mysql";
import { Type } from "../Utils.js";
export default abstract class Migration {
    readonly version: number;
    private currentConnection?;
    constructor(version: number);
    shouldRun(currentVersion: number): Promise<boolean>;
    abstract install(): Promise<void>;
    abstract rollback(): Promise<void>;
    registerModels?(): void;
    protected query(queryString: string): Promise<void>;
    protected getCurrentConnection(): Connection;
    setCurrentConnection(connection: Connection | null): void;
}
export interface MigrationType<M extends Migration> extends Type<M> {
    new (version: number): M;
}