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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 deserialize_dict(self, attr, dict_type):
 """Deserialize a dictionary. :param dict/list attr: Dictionary to be deserialized. Also accepts a list of key, value pairs. :param str dict_type: The object type of the items in the dictionary. :rtype: dict """

        if isinstance(attr, list):
            return {x['key']: self.deserialize_data(x['value'], dict_type) for x in attr}

        if isinstance(attr, ET.Element):
            # Transform <Key>value</Key> into {"Key": "value"}
            attr = {el.tag: el.text for el in attr}
        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}