old_contents: # --------------------------------------------------------------------------------------------
  # Copyright (c) Microsoft Corporation. All rights reserved.
  # Licensed under the MIT License. See License.txt in the project root for license information.
  # --------------------------------------------------------------------------------------------
  
  
  class CreateTasksErrorException(Exception):
      """ Aggregate Exception containing details for any failures from a task add operation.
  
      :param str message: Error message describing exit reason
      :param [~TaskAddParameter] pending_tasks: List of tasks remaining to be submitted.
      :param [~TaskAddResult] failure_tasks: List of tasks which failed to add
      :param [~Exception] errors: List of unknown errors forcing early termination
      """
      def __init__(self, pending_tasks=None, failure_tasks=None, errors=None):
          self.pending_tasks = list(pending_tasks)
          self.failure_tasks = list(failure_tasks)
          self.errors = list(errors)
          if failure_tasks and errors:
              self.message = \
                  "Multiple errors encountered. Check the `failure_tasks` and " \
                  "`errors` properties for additional details."
          elif errors:
              if len(errors) > 1:
                  self.message = \
                      "Multiple errors occurred when submitting add_collection " \
                      "requests. Check the `errors` property for the inner " \
                      "exceptions."
              else:
                  self.message = errors[0].message
          elif failure_tasks:
              if len(failure_tasks) > 1:
                  self.message = \
                      "Multiple client side errors occured when adding the " \
                      "tasks. Check the `failure_tasks` property for details on" \
                      " these tasks."
              else:
                  result = failure_tasks[0]
                  self.message = \
                      "Task with id `%s` failed due to client error - %s::%s" % \
                      result.task_id,\
                      result.error.code,\
                      result.error.message
          super(CreateTasksErrorException, self).__init__(self.message)
  
new_contents: # --------------------------------------------------------------------------------------------
  # Copyright (c) Microsoft Corporation. All rights reserved.
  # Licensed under the MIT License. See License.txt in the project root for license information.
  # --------------------------------------------------------------------------------------------
  
  
  class CreateTasksErrorException(Exception):
      """ Aggregate Exception containing details for any failures from a task add operation.
  
      :param str message: Error message describing exit reason
      :param [~TaskAddParameter] pending_tasks: List of tasks remaining to be submitted.
      :param [~TaskAddResult] failure_tasks: List of tasks which failed to add
      :param [~Exception] errors: List of unknown errors forcing early termination
      """
      def __init__(self, pending_tasks=None, failure_tasks=None, errors=None):
          self.pending_tasks = list(pending_tasks)
          self.failure_tasks = list(failure_tasks)
          self.errors = list(errors)
          if failure_tasks and errors:
              self.message = \
                  "Multiple errors encountered. Check the `failure_tasks` and " \
                  "`errors` properties for additional details."
          elif errors:
              if len(errors) > 1:
                  self.message = \
                      "Multiple errors occurred when submitting add_collection " \
                      "requests. Check the `errors` property for the inner " \
                      "exceptions."
              else:
                  self.message = errors[0].message
          elif failure_tasks:
              if len(failure_tasks) > 1:
                  self.message = \
                      "Multiple client side errors occured when adding the " \
                      "tasks. Check the `failure_tasks` property for details on" \
                      " these tasks."
              else:
                  result = failure_tasks[0]
                  self.message = \
                      "Task with id `%s` failed due to client error - %s::%s" % \
                      (result.task_id, result.error.code, result.error.message)
          super(CreateTasksErrorException, self).__init__(self.message)
  
subject: Fix Batch add tasks failure message (#8078)