code: public static ApruveResponse<List<Payment>> getAll(String paymentRequestId) {
  		return ApruveClient.getInstance().index(
  				getPaymentsPath(paymentRequestId),
  				new GenericType<List<Payment>>() {
  				});
  	}
docs: Fetches all Payments belonging to the PaymentRequest with the specified
  ID.
  
  @see <a
  href="https://www.apruve.com/doc/developers/rest-api/">https://www.apruve.com/doc/developers/rest-api/</a>
  @param paymentRequestId
  The ID of the PaymentRequest that owns the Payment
  @return List of Payments, or null if the PaymentRequest is not found