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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 _df_dtypes(self, table_name, convert_dates):
 """Get dtypes to use when unpacking sqlite tables as dataframes. """

        out = self._raw_table_dtypes[table_name]
        if convert_dates:
            out = out.copy()
            for date_column in self._datetime_int_cols[table_name]:
                out[date_column] = datetime64ns_dtype

        return out