Moves the specified task task_id to another position in the task list tasklist_id.
This can include putting it as a child task under a new parent and/or move it to a different position among its sibling tasks.
| this |
an GDataSession |
| tasklist_id |
id of a task list |
| task_id |
id of a task |
| parent_task_id |
parent task identifier, or null to move at the top-level |
| previous_task_id |
previous sibling task identifier, or null to move at the first position among its siblings |
| cancellable |
optional Cancellable object, or null |
|
whether succeeded |