flush

Flush any pending changes to the PersonaStore's backing store.

PersonaStores may (transparently) implement caching or I/O queueing which means that changes to their Personas may not be immediately written to the PersonaStore's backing store. Calling this function will force all pending changes to be flushed to the backing store.

This must not be called before PersonaStore.prepare.

Since:

0.1.17