result location for the format. out[allow-none]
result location for the amount. out[allow-none]
result location for the rate. out[allow-none]
result location for the flush flag. out[allow-none]
result location for the intermediate flag. out[allow-none]
result location for the duration. out[allow-none]
result location for the EOS flag. out[allow-none]
Extract the values the step_done message. MT safe.