How is the `output_interval` meta information in the output files used?

[guoqing-noaa]

The ufs-community version added the following code snippet to write out the output_interval meta information to output files.
It came from PR #18. It looks like NSSL added it.
Do we know how this information is used? Anyone uses this? Thanks!

MPAS-Model/src/framework/mpas_stream_manager.F

Lines 4304 to 4316 in dd7e157

	! Write output_interval to stream
	!
	IF (stream %filename_interval(1:4) /= "none") THEN
	call mpas_set_timeInterval(filename_interval, timeString=stream %filename_interval)
	call mpas_get_timeInterval(filename_interval,M=output_interval)
	call mpas_writeStreamAtt(stream%stream, 'output_interval',output_interval,syncVal=.true., ierr=local_ierr)
	if (local_ierr /= MPAS_STREAM_NOERR) then
	ierr = MPAS_STREAM_MGR_ERROR
	return
	end if
	END IF
	end if

[guoqing-noaa]

@ywangwof Do you have any information on how the output_interval meta information in the NetCDF output files is used? Thanks!