input: def most_efficient_order(tasks):
      """
      This method takes a list of tasks and produces the most efficient order for completing the tasks.
  
      Parameters
      ----------
      tasks: List
          A list of tasks to be performed.
  
      Returns
      -------
      List
          An ordered list of tasks representing the most efficient order for completing the tasks.
      >>> class Task:
      ...     def __init__(self, time):
      ...         self.time = time
      ...     def get_time(self):
      ...         return self.time
      >>> tasks = [Task(5), Task(3), Task(7), Task(2), Task(4)]
      >>> most_efficient_order(tasks)
      [Task(2), Task(3), Task(4), Task(5), Task(7)]
      """
output:     tasks.sort(key=lambda task: task.get_time())
      return tasks