code: function generateEncryptionKey() {
    const buffer = crypto.randomBytes(32);
    const encodedKey = buffer.toString('base64');
  
    console.log(`Base 64 encoded encryption key: ${encodedKey}`);
  
    return encodedKey;
  }
docs: Generates a 256 bit (32 byte) AES encryption key and prints the base64
  representation.
  
  This is included for demonstration purposes. You should generate your own
  key. Please remember that encryption keys should be handled with a
  comprehensive security policy.
  
  @returns {string} The encryption key.