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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 get_preferences(self):
 """ Gets preferences for certain display variables from zeq_gui_preferences. """

        # default
        preferences = {}
        preferences['gui_resolution'] = 100.
        preferences['show_Zij_treatments'] = True
        preferences['show_Zij_treatments_steps'] = 2.
        preferences['show_eqarea_treatments'] = False
        preferences['auto_save'] = True
        # preferences['show_statistics_on_gui']=["int_n","int_ptrm_n","frac","scat","gmax","b_beta","int_mad","dang","f","fvds","g","q","drats"]#,'ptrms_dec','ptrms_inc','ptrms_mad','ptrms_angle']
        #
        # try to read preferences file:
        #user_data_dir = find_pmag_dir.find_user_data_dir("demag_gui")
        # if not user_data_dir:
        #    return preferences
        # if os.path.exists(user_data_dir):
        #    pref_file = os.path.join(user_data_dir, "demag_gui_preferences.json")
        #    if os.path.exists(pref_file):
        #        with open(pref_file, "r") as pfile:
        #            return json.load(pfile)
        return preferences