save_qplib

save_qplib(model: Model, filename: str | PathLike) → None

Save a model to a QPLIB file.

パラメータ:

• model (Model) -- Model to write.

• filename (str | PathLike) -- Output file path.

例外:

RuntimeError -- If the model is invalid for the QPLIB format (e.g., contains degree 3 or higher, or has invalid variable names / constraint labels).