The location of a landing area captured from a downward facing camera

                time_usec                 : Timestamp (micros since boot or Unix epoch) (uint64_t)
                target_num                : The ID of the target if multiple targets are present (uint8_t)
                frame                     : MAV_FRAME enum specifying the whether the following feilds are earth-frame, body-frame, etc. (uint8_t)
                angle_x                   : X-axis angular offset (in radians) of the target from the center of the image (float)
                angle_y                   : Y-axis angular offset (in radians) of the target from the center of the image (float)
                distance                  : Distance to the target from the vehicle in meters (float)
                size_x                    : Size in radians of target along x-axis (float)
                size_y                    : Size in radians of target along y-axis (float)

def landing_target_encode(self, time_usec, target_num, frame, angle_x, angle_y, distance, size_x, size_y):
                '''
                The location of a landing area captured from a downward facing camera

                time_usec                 : Timestamp (micros since boot or Unix epoch) (uint64_t)
                target_num                : The ID of the target if multiple targets are present (uint8_t)
                frame                     : MAV_FRAME enum specifying the whether the following feilds are earth-frame, body-frame, etc. (uint8_t)
                angle_x                   : X-axis angular offset (in radians) of the target from the center of the image (float)
                angle_y                   : Y-axis angular offset (in radians) of the target from the center of the image (float)
                distance                  : Distance to the target from the vehicle in meters (float)
                size_x                    : Size in radians of target along x-axis (float)
                size_y                    : Size in radians of target along y-axis (float)

                '''
                return MAVLink_landing_target_message(time_usec, target_num, frame, angle_x, angle_y, distance, size_x, size_y)