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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 get_attributes(self, request_envelope):
 # type: (RequestEnvelope) -> Dict[str, object] """Get attributes from table in Dynamodb resource. Retrieves the attributes from Dynamodb table. If the table doesn't exist, returns an empty dict if the ``create_table`` variable is set as True, else it raises PersistenceException. Raises PersistenceException if `get_item` fails on the table. :param request_envelope: Request Envelope passed during skill invocation :type request_envelope: ask_sdk_model.RequestEnvelope :return: Attributes stored under the partition keygen mapping in the table :rtype: Dict[str, object] :raises: :py:class:`ask_sdk_core.exceptions.PersistenceException` """

        try:
            table = self.dynamodb.Table(self.table_name)
            partition_key_val = self.partition_keygen(request_envelope)
            response = table.get_item(
                Key={self.partition_key_name: partition_key_val},
                ConsistentRead=True)
            if "Item" in response:
                return response["Item"][self.attribute_name]
            else:
                return {}
        except ResourceNotExistsError:
            raise PersistenceException(
                "DynamoDb table {} doesn't exist or in the process of "
                "being created. Failed to get attributes from "
                "DynamoDb table.".format(self.table_name))
        except Exception as e:
            raise PersistenceException(
                "Failed to retrieve attributes from DynamoDb table. "
                "Exception of type {} occurred: {}".format(
                    type(e).__name__, str(e)))