Returns the regeneration status of the solid model. This is analogous to the regen status indicator (Green/Disconnected/Yellow/Red) in the Creo Parametric UI.

Note: Models with certain contents, like circular references or assembly analysis features, will never return a PRO_SOLID_REGENERATED status. So this flag should not provide an absolute restriction; if the flag remains at the PRO_SOLID_NEEDS_REGENERATION status through two successful regenerations, the model could be considered up to date.