For RenderMan instancing in Katana
https://rmanwiki.pixar.com/display/RFK23/Instancing+in+Katana
Read *.bgeo file sequence - write *.abc file
export LD_LIBRARY_PATH=/opt/sandbox/boost-1.67_gcc-4.8.5/lib
import sys
module_path = '/write_alembic'
if module_path not in sys.path:
sys.path.append(module_path)
import maya_mash
reload(maya_mash)
maya_mash.main()