Finishes asynchronous initialization and returns the result. See g_async_initable_init_async(). Since 2.22
a GAsyncResult.
TRUE if successful. If an error has occurred, this function will return FALSE and set error appropriately if present.
GException on failure.
See Implementation
Finishes asynchronous initialization and returns the result. See g_async_initable_init_async(). Since 2.22