Used by activity workers and task states using the callback pattern to report that the task identified by the taskToken
completed successfully.
See https://www.paws-r-sdk.com/docs/sfn_send_task_success/ for full documentation.
sfn_send_task_success(taskToken, output)
[required] The token that represents this task. Task tokens are generated by Step Functions when tasks are assigned to a worker, or in the context object when a workflow enters a task state. See GetActivityTaskOutput$taskToken.
[required] The JSON output of the task. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.