Emitted when one or more D-Bus properties on proxy changes.
The local cache has already been updated when this signal fires. Note that both changed_properties and
invalidated_properties are guaranteed to never be null (either may be empty though).
This signal exists purely as a convenience to avoid having to connect signals to all interface proxies managed by manager.
This signal is emitted in the thread-default main context that manager was constructed in.
| object_proxy |
The DBusObjectProxy on which an interface has properties that are changing. |
| interface_proxy |
The DBusProxy that has properties that are changing. |
| changed_properties |
A Variant containing the properties that changed (type: `a{sv}`). |
| invalidated_properties |
A null terminated array of properties that were invalidated. |