solana-program-examples/basics/hello-solana/poseidon/ts-programs/src/helloSolana.ts

import { Pubkey, type Result } from '@solanaturbine/poseidon';

export default class HelloSolana {
  static PROGRAM_ID = new Pubkey('84mLf5VZKf58tQ1VkUtsthxuR8fSeDLv8ZKemANC53oF');

  initialize(): Result {
    // Write your program here
  }
}