def get_filter_value(self, column_name):
for flt, value in zip(self.filters, self.values):<EOL><INDENT>if flt.column_name == column_name:<EOL><INDENT>return value<EOL><DEDENT><DEDENT>
Returns the filtered value for a certain column

:param column_name: The name of the column that we want the value from
:return: the filter value of the column