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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 select_string(self, rows: List[Row], column: StringColumn) -> List[str]: """ Select function takes a list of rows and a column name and returns a list of strings as in cells. """

        return [str(row.values[column.name]) for row in rows if row.values[column.name] is not None]