Does not the Bode Diagrama of the inputs of the system?

Question

I am implementing a python code that performs with a Bode Diagram of a dynamic system. Nevertheless, according to a command available at the library of "Signal.Processing" of Scipy, the Bode diagram does not depends of the inputs of the dynamic system. Is that correct? I thought that I should consider the inputs (perturbing forces) to construct the diagram.

Here is the comand that I used:

w, mag, phase = signal.bode(sys)

where sys is the dynamic of the system on State Space Model:

sys=signal.StateSpace(A,B,C,D)

Note that the inputs (u) is not considered in "sys"

Answer 1

I think, the Bode diagram only applies to the transfer function of the system, not the inputs. But I'm not a 100% sure.