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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 save_item(self, item):
 """Save an object to DynamoDB. :param item: Unpacked into kwargs for :func:`boto3.DynamoDB.Client.update_item`. :raises bloop.exceptions.ConstraintViolation: if the condition (or atomic) is not met. """

        try:
            self.dynamodb_client.update_item(**item)
        except botocore.exceptions.ClientError as error:
            handle_constraint_violation(error)