code: func (c *Callbacks) OnCSVCMsg_PacketReliable(fn func(*dota.CSVCMsg_PacketReliable) error) {
  	c.onCSVCMsg_PacketReliable = append(c.onCSVCMsg_PacketReliable, fn)
  }
docs: // OnCSVCMsg_PacketReliable registers a callback for SVC_Messages_svc_PacketReliable