What are the units of Rotation vector (INV_ICM20948_SENSOR_ROTATION_VECTOR) accuracy (inv_icm20948_get_rv_accuracy()) on ICM-20948? Android is expecting this value to be in radians, but what I read it is approx. from 0.035 to 0.06 (in degree 2° to 3.43°) which is too low to be true. I need to interpret it as compass accuracy.