+=head2 C<check_suppressions_file>
+
+ my $supp_ok = $tvc->check_suppressions_file($file);
+
+Returns a boolean indicating whether the suppressions contained in C<$file> are compatible with the command.
+
+Defaults to true.
+
+=cut
+
+sub check_suppressions_file { 1 }
+
+=head2 C<filter>
+
+ my $filtered_report = $tvc->filter($session, $report);