You'll probably need a start-person for which to write the report. This person should be obtained from the <tt>options_class</tt> object through the [https://gramps-project.org/docs/gen/gen_plug.html#gramps.gen.plug.menu._person.PersonOption PersonOption] class which will default to the active person in the database. Anything else the report class needs in order to produce the report should be obtained from the <tt>options_class</tt> object. For example, you may need to include the additional code in the report class constructor to obtain any options you defined for the report.