| ARG | Returns a pointer to a method argument. |
| BEGIN_METHOD | Begins the implementation of a method that takes at least one argument. |
| BEGIN_METHOD_VOID | Begins the implementation of a method that takes no argument. |
| END_METHOD | Ends the implementation of a method. |
| GB.NParam | Returns the number of variable arguments of a method. |
| LENGTH | Returns the length of a string method argument. |
| MISSING | Returns if an optional argument has a value. |
| STRING | Returns the address of a string method argument. |
| VARG | Returns the value of a method argument. |
| VARGOPT | Returns the value of an optional method argument. |