# Annotation Glossary

### A

array

  Parameter points to an array of items.

### E

element-type

  Generics and defining elements of containers and arrays.

### O

out

  Parameter for returning results. Default is transfer full.

### T

transfer full

  Free data after the code is done.

transfer floating

  Alias for transfer none, used for objects with floating refs.

transfer none

  Don't free data after the code is done.

### C

closure

  This parameter is a 'user_data', for callbacks; many bindings can pass NULL here.

### S

scope async

  The callback is valid until first called.

### T

transfer container

  Free data container after the code is done.

### S

scope call

  The callback is valid only during the call to the method.

### A

allow-none

  NULL is ok, both for passing and for returning.