In addition to the parameters detailed for each endpoint in this section, tasks also have a special property
state to help you understand the task's most recent status. The following integer values are valid task states:
Unassigned: task has not yet been assigned to a worker.
Assigned: task has been assigned to a worker.
Active: task has been started by its assigned worker.
Completed: task has been completed by its assigned worker. Includes both successful and failed completions.
A Task's state cannot be modified explicitly with the exception of Complete task