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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 detach(self):
 """ Detach the table from a file. Detaching a table reads all data from the file and places it in memory. This is useful when constructing or significantly manipulating table data, or when more speed is needed. Tables created by the default constructor are detached. When detaching, only unmodified records are loaded from the file; any uncommited changes in the Table are left as-is. .. warning:: Very large tables may consume all available RAM when detached. Expect the in-memory table to take up about twice the space of an uncompressed table on disk, although this may vary by system. """

        if not self.is_attached():
            raise ItsdbError('already detached')
        records = self._records
        for i, line in self._enum_lines():
            if records[i] is None:
                # check number of columns?
                records[i] = tuple(decode_row(line))
        self.path = None
        self.encoding = None