Hi All I am trying is to run the example mimo plotting in docs (0.9.4) , my version of the control pkg is 0.9.4, I could not plot the example code as below

sys1 = ct.tf([1], [1, 2, 1], name='sys1')
sys2 = ct.tf([1, 0.2], [1, 1, 3, 1, 1], name='sys2')
response = ct.frequency_response([sys1, sys2])

ct.bode_plot(response, initial_phase=0)

but getting error

File "C:\Users\user\OneDrive\Documents\2_dof_control_systems python\src\trial.py", line 21, in <module> ct.bode_plot(response, initial_phase=0) File "C:\Users\user\miniforge3\envs\control_env\Lib\site-packages\control\freqplot.py", line 214, in bode_plot omega, omega_range_given = _determine_omega_vector( ^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\user\miniforge3\envs\control_env\Lib\site-packages\control\freqplot.py", line 1593, in _determine_omega_vector omega_out = _default_frequency_range( ^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\user\miniforge3\envs\control_env\Lib\site-packages\control\freqplot.py", line 1666, in _default_frequency_range if sys.isctime(): ^^^^^^^^^^^ AttributeError: 'TimeResponseData' object has no attribute 'isctime'

I could not plot any example as mention in docs below
https://python-control.readthedocs.io/en/latest/plotting.html#response-functions

some times, it complains omega is required from frequency_response, but in "frequency_response" method omega is optional , I don't where is the problem