https://sandialabs.github.io/seacas-docs/ioss_html/classIohb_1_1DatabaseIO.html
IOSS: Iohb::DatabaseIO Class Reference
iossclassreference
https://sandialabs.github.io/seacas-docs/ioss_html/Iohb__Layout_8h.html
IOSS: src/heartbeat/Iohb_Layout.h File Reference
layout hiosssrcheartbeatfile