Plots excited state probability vs the Rabi angle (angle of rotation
        around the x-axis).

        Args:
            **plot_kwargs: Arguments to be passed to matplotlib.pyplot.plot.

def plot(self, **plot_kwargs: Any) -> None:
        """Plots excited state probability vs the Rabi angle (angle of rotation
        around the x-axis).

        Args:
            **plot_kwargs: Arguments to be passed to matplotlib.pyplot.plot.
        """
        fig = plt.figure()
        plt.plot(self._rabi_angles, self._excited_state_probs, 'ro-',
                 figure=fig, **plot_kwargs)
        plt.xlabel(r"Rabi Angle (Radian)", figure=fig)
        plt.ylabel('Excited State Probability', figure=fig)
        fig.show()