code: def cmd_takeoff(self, args):
          '''take off'''
          if ( len(args) != 1):
              print("Usage: takeoff ALTITUDE_IN_METERS")
              return
  
          if (len(args) == 1):
              altitude = float(args[0])
              print("Take Off started")
              self.master.mav.command_long_send(
                  self.settings.target_system,  # target_system
                  mavutil.mavlink.MAV_COMP_ID_SYSTEM_CONTROL, # target_component
                  mavutil.mavlink.MAV_CMD_NAV_TAKEOFF, # command
                  0, # confirmation
                  0, # param1
                  0, # param2
                  0, # param3
                  0, # param4
                  0, # param5
                  0, # param6
                  altitudef cmd_takeoff(self, args):
          '''take off'''
          if ( len(args) != 1):
              print("Usage: takeoff ALTITUDE_IN_METERS")
              return
  
          if (len(args) == 1):
              altitude = float(args[0])
              print("Take Off started")
              self.master.mav.command_long_send(
                  self.settings.target_system,  # target_system
                  mavutil.mavlink.MAV_COMP_ID_SYSTEM_CONTROL, # target_component
                  mavutil.mavlink.MAV_CMD_NAV_TAKEOFF, # command
                  0, # confirmation
                  0, # param1
                  0, # param2
                  0, # param3
                  0, # param4
                  0, # param5
                  0, # param6
                  altitude)
docs: take off