Fix `Process.get_datastream_files`
Fixes #11 (closed) by getting the dsid before calling utils.get_datastream_files
Co-authored-by: Eddie Schuman eddie.schuman@pnnl.gov
Fixes #11 (closed) by getting the dsid before calling utils.get_datastream_files
Co-authored-by: Eddie Schuman eddie.schuman@pnnl.gov