bt_component_class_filter_accept_output_port_connection_method accept_output_port_connection;
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_accept_output_port_connection_method accept_output_port_connection;
bt_component_class_filter_input_port_connected_method input_port_connected;
bt_component_class_filter_output_port_connected_method output_port_connected;