code: def add_dependents(self, task, params={}, **options): 
          
          path = "/tasks/%s/addDependents" % (task)
          return self.client.post(path, params, **options)
docs: Marks a set of tasks as dependents of this task, if they are not already
          dependents. *A task can have at most 30 dependents.*
  
          Parameters
          ----------
          task : {Id} The task to add dependents to.
          [data] : {Object} Data for the request
            - dependents : {Array} An array of task IDs that should depend on this task.