<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_quoted_columns(self, platform):
 """ Returns the quoted representation of the column names the constraint is associated with. But only if they were defined with one or a column name is a keyword reserved by the platform. Otherwise the plain unquoted value as inserted is returned. :param platform: The platform to use for quotation. :type platform: Platform :rtype: list """

        columns = []

        for column in self._columns.values():
            columns.append(column.get_quoted_name(platform))

        return columns