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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_column_name(self, column_name):
 """ Get a column for given column name from META api. """

        name = pretty_name(column_name)
        if column_name in self._meta.columns:
            column_cls = self._meta.columns[column_name]
            if column_cls.verbose_name:
                name = column_cls.verbose_name
        return name