pub fn saved_model(wb: &Workbook, sheet: usize) -> Option<Value>Expand description
The saved model of a sheet as data.solver params, if any.
A sheet’s own (sheet-level) model wins over one saved as workbook-level names, and its names
are read alone, so the two never mix. A sheet-level solver_opt of "" (written by Reset
All over a workbook-level model) means the sheet has no model.