Preserve latest mesh in a custom plugin

I recently started learning maxscript.
Currently I'm developing a custom plugin starts like

plugin simpleObject myplugin
classID:#(0xe356537c, 0xa4e73b3b)

This plugin recomputes the entire geometry when is's read back from a saved file.

There are lots of modifiers that edit meshes, but I don't think opening a saved file triggers recompute of them. So, I believe there is a way to save the mesh to file, and recover the mesh when loaded, without recomputing all.

Please somebody shed some light...