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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def plot_structures(self, structures, fontsize=6, **kwargs):
 """ Plot diffraction patterns for multiple structures on the same figure. Args: structures (Structure):
 List of structures two_theta_range ([float of length 2]):
 Tuple for range of two_thetas to calculate in degrees. Defaults to (0, 90). Set to None if you want all diffracted beams within the limiting sphere of radius 2 / wavelength. annotate_peaks (bool):
 Whether to annotate the peaks with plane information. fontsize: (int) fontsize for peak labels. """

        import matplotlib.pyplot as plt
        nrows = len(structures)
        fig, axes = plt.subplots(nrows=nrows, ncols=1, sharex=True,
                                 squeeze=False)

        for i, (ax, structure) in enumerate(zip(axes.ravel(), structures)):
            self.get_plot(structure,
                          fontsize=fontsize, ax=ax, with_labels=i == nrows - 1,
                          **kwargs)
            spg_symbol, spg_number = structure.get_space_group_info()
            ax.set_title("{} {} ({}) ".format(structure.formula, spg_symbol,
                                              spg_number))

        return fig