Not working method 'getDescriptionOfDegreesOfFreedom()' in class 'DynamicsRegressorGenerator' about idyntree HOT 4 CLOSED

>> regrGen.getDescriptionOfDegreesOfFreedom()

ans =

DOF Index: 0 Name: l_hip_pitch
DOF Index: 1 Name: l_hip_roll
DOF Index: 2 Name: l_hip_yaw
DOF Index: 3 Name: l_knee
DOF Index: 4 Name: l_ankle_pitch
DOF Index: 5 Name: l_ankle_roll
DOF Index: 6 Name: r_hip_pitch
DOF Index: 7 Name: r_hip_roll
DOF Index: 8 Name: r_hip_yaw
DOF Index: 9 Name: r_knee
DOF Index: 10 Name: r_ankle_pitch
DOF Index: 11 Name: r_ankle_roll
DOF Index: 12 Name: torso_pitch
DOF Index: 13 Name: torso_roll
DOF Index: 14 Name: torso_yaw
DOF Index: 15 Name: l_shoulder_pitch
DOF Index: 16 Name: l_shoulder_roll
DOF Index: 17 Name: l_shoulder_yaw
DOF Index: 18 Name: l_elbow
DOF Index: 19 Name: l_wrist_prosup
DOF Index: 20 Name: l_wrist_pitch
DOF Index: 21 Name: l_wrist_yaw
DOF Index: 22 Name: neck_pitch
DOF Index: 23 Name: neck_roll
DOF Index: 24 Name: neck_yaw
DOF Index: 25 Name: r_shoulder_pitch
DOF Index: 26 Name: r_shoulder_roll
DOF Index: 27 Name: r_shoulder_yaw
DOF Index: 28 Name: r_elbow
DOF Index: 29 Name: r_wrist_prosup
DOF Index: 30 Name: r_wrist_pitch
DOF Index: 31 Name: r_wrist_yaw


>> regrGen.getDescriptionOfDegreesOfFreedom()

ans =

   Empty string: 1-by-0