DBusSignalFlags# Added in version 2.26. class DBusSignalFlags# Flags used when subscribing to signals via signal_subscribe(). Fields# class DBusSignalFlags MATCH_ARG0_NAMESPACE# The type of the None singleton. MATCH_ARG0_PATH# The type of the None singleton. NONE# The type of the None singleton. NO_MATCH_RULE# The type of the None singleton.