def METHOD_NAME(self):
    save_dictionary = Settings()
    settings = Settings()
    settings[Tags.SPACING_MM] = 0.5
    settings[Tags.DIM_VOLUME_X_MM] = 10
    settings[Tags.DIM_VOLUME_Y_MM] = 10
    settings[Tags.DIM_VOLUME_Z_MM] = 10
    save_dictionary[Tags.SETTINGS] = settings
    background_dictionary = Settings()
    background_dictionary[Tags.MOLECULE_COMPOSITION] = TISSUE_LIBRARY.muscle()
    background_dictionary[Tags.STRUCTURE_TYPE] = Tags.BACKGROUND
    structure_settings = Settings()
    structure_settings["background"] = background_dictionary
    save_dictionary[Tags.STRUCTURES] = structure_settings
    save_dictionary["test_dictionary"] = {
        "test_spectrum": AbsorptionSpectrumLibrary().get_spectrum_by_name("Water")}
    self.assert_save_and_read_dictionaries_equal(save_dictionary)