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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 print_app_meta_data(self):
 """ Print the app's meta data. """

        l_metaData  = dir(self)
        l_classVar  = [x for x in l_metaData if x.isupper() ]
        for str_var in l_classVar:
            str_val = getattr(self, str_var)
            print("%20s: %s" % (str_var, str_val))