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# PRAccessHow
This is the declaration for the enumeration {ref}`PRAccessHow`, used in the
`how` parameter of {ref}`PR_Access`:
```{code}
#include <prio.h>
typedef enum PRAccessHow {
PR_ACCESS_EXISTS = 1,
PR_ACCESS_WRITE_OK = 2,
PR_ACCESS_READ_OK = 3
} PRAccessHow;
```
See [PR_Access](en/PR_Access) for what each of these values mean.