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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 dynamize_scan_filter(self, scan_filter):
 """ Convert a layer2 scan_filter parameter into the structure required by Layer1. """

        d = None
        if scan_filter:
            d = {}
            for attr_name, op, value in scan_filter:
                if op == 'BETWEEN':
                    if isinstance(value, tuple):
                        avl = [self.dynamize_value(v) for v in value]
                    else:
                        msg = 'BETWEEN condition requires a tuple value'
                        raise TypeError(msg)
                elif op == 'NULL' or op == 'NOT_NULL':
                    avl = None
                elif isinstance(value, tuple):
                    msg = 'Tuple can only be supplied with BETWEEN condition'
                    raise TypeError(msg)
                else:
                    avl = [self.dynamize_value(value)]
            dd = {'ComparisonOperator': op}
            if avl:
                dd['AttributeValueList'] = avl
            d[attr_name] = dd
        return d