insert_task
Description:
public TasksTask insert_task (TasksTask task, TasksTasklist tasklist, Cancellable? cancellable = null) throws Error
  
  Inserts task by uploading it to the online tasks service into tasklist tasklist.
 It is safe to unref tasklist after function returns.
For more details, see insert_entry.
Parameters:
| this | |
| task | 
           the TasksTask to insert  | 
      
| tasklist | 
           TasksTasklist to insert into  | 
      
| cancellable | 
           optional Cancellable object, or   |