bt_component_class_filter_finalize_method finalize;
bt_component_class_filter_query_method query;
bt_component_class_filter_input_port_connected_method input_port_connected;
bt_component_class_filter_output_port_connected_method output_port_connected;
bt_component_class_filter_finalize_method finalize;
bt_component_class_filter_query_method query;
bt_component_class_filter_input_port_connected_method input_port_connected;
bt_component_class_filter_output_port_connected_method output_port_connected;