Man pages matching name probe::staprun.send_control_message in section 3stap:

probe::staprun.send_control_message.3stap.en	debian 10 / systemtap-doc
probe::staprun.send_control_message.3stap.en	debian 11 / systemtap-doc
probe::staprun.send_control_message.3stap.en	debian 12 / systemtap-doc