Traceback (most recent call last):  File "C:\Users\me\PycharmProjects\f\control1.py", line 17, in <module>    S = ct.step_info(sysdata=y_out2, T=T2)  File "C:\Users\me\PycharmProjects\f\venv\lib\site-packages\control\timeresp.py", line 1614, in step_info    settled = np.where(IndexError: index -1 is out of bounds for axis 0 with size 0

importcontrolasctimportnumpyasnpnum= [0,5]den= [1,0]H=ct.TransferFunction(num,den)t=np.arange(start=0,stop=2,step=1/120)T2,y_out2=ct.timeresp.impulse_response(sys=H,T=t)pyplot.figure(1)pyplot.plot(T2,y_out2)pyplot.grid(True)pyplot.show(block=False)S=ct.step_info(sysdata=y_out2,T=T2)pyplot.show()