Body of the task - non-divisible unit of work done by this task. Optionally is provided with the result from the previous completed task or None if there was no previous task (or the previous task is uncompleted or unknown).
Body of the task - non-divisible unit of work done by this task. Optionally is provided with the result from the previous completed task or None if there was no previous task (or the previous task is uncompleted or unknown).