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export class DatabaseError extends Error {  constructor(message: string) {    super(`Database Error: ${message}`);  }}
// the class to expandexport class AttainDatabase {  static __type: string = "attain"  async connect() {    console.log('database connected')  }}
export interface NoParamConstructor<I> {  new(): I  __type: string;}
/*async function createDatabase<T extends AttainDatabase>(ctor: NoParamConstructor<T>): Promise<T> {  const database = new ctor();  await database.connect();  return database;}*/