The plugin writes basic information about rpm transactions to the system dbus - like packages installed or removed. Other programs can subscribe to the signals to be notified of the packages on the system change.
Sends StartTransaction and EndTransaction messages from the /org/rpm/Transaction object with the org.rpm.Transaction interface.
The signal passes the DB cookie as a string and the transaction id as an unsigned 32 bit integer.
There are currently no options for this plugin in particular. See rpm-plugins(8) on how to control plugins in general.