How to get the rotation range of the gimbal?

MSDK V5 provides KeyGimbalAttitudeRange to get the rotation range of the gimbal, but the data it gets in the latest version (5.2.0) is not very accurate, so it is recommended to control the gimbal to the maximum and minimum limits of pitch, roll and yaw with the remote control's scroll wheel, then call KeyGimbalAttitude to get to get the adjustable limit angle of the gimbal.