code: def delete_item(self, item):
          
          try:
              self.dynamodb_client.delete_item(**item)
          except botocore.exceptions.ClientError as error:
              handle_constraint_violation(error)
docs: Delete an object in DynamoDB.
  
          :param item: Unpacked into kwargs for :func:`boto3.DynamoDB.Client.delete_item`.
          :raises bloop.exceptions.ConstraintViolation: if the condition (or atomic) is not met.