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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 before_update(mapper, conn, target):
 """Set the Table ID based on the dataset number and the sequence number for the table."""


        target.name = Table.mangle_name(target.name)

        if isinstance(target, Column):
            raise TypeError('Got a column instead of a table')

        target.update_id(target.sequence_id, False)