import controlimport matplotlib.pyplot as pltG =  control.tf([1], [1,1,0,0,0])count, contour1 = control.nyquist_plot(G, label='indent_radius default (0.1)',                     return_contour=True)R = 0.11count, contour2 = control.nyquist_plot(G, indent_radius=R,                                      return_contour=True,                                      label=f'indent_radius={R}')ax = plt.gca()ax.set_aspect(1)ax.legend(bbox_to_anchor=(1.05, 1), loc='upper left', borderaxespad=0.)plt.figure()cp = plt.plot(contour1.real, contour1.imag, '-',              label='indent_radius default (0.1)')c = cp[0].get_color()plt.plot(contour1.real, -contour1.imag, '--', color=c)cp = plt.plot(contour2.real, contour2.imag, '-',              label=f'indent_radius={R}')c = cp[0].get_color()plt.plot(contour2.real, -contour2.imag, '--', color=c)ax = plt.gca()ax.legend()ax.set_aspect(1)ax.set_xlim([-0.2, 0.2])ax.set_ylim([-0.2, 0.2])ax.grid()ax.set_title(r'Nyquist Contour $\Gamma$',)plt.show()