Function gio_sys::g_async_initable_newv_async

pub unsafe extern fn g_async_initable_newv_async(object_type: GType,
                                                 n_parameters: c_uint,
                                                 parameters: *mut GParameter,
                                                 io_priority: c_int,
                                                 cancellable: *mut GCancellable,
                                                 callback: GAsyncReadyCallback,
                                                 user_data: gpointer)