code: public OvhTransaction payment_transaction_transactionId_GET(Long transactionId) throws IOException {
  		String qPath = "/me/payment/transaction/{transactionId}";
  		StringBuilder sb = path(qPath, transactionId);
  		String resp = exec(qPath, "GET", sb.toString(), null);
  		return convertTo(resp, OvhTransaction.class);
  	}
docs: Get associated payment method transaction
  
  REST: GET /me/payment/transaction/{transactionId}
  @param transactionId [required] Payment method transaction ID
  
  API beta