save_lp¶ save_lp(model: Model, filename: str | PathLike, allow_constant: bool = True) → None¶ Save a model to an LP file. パラメータ: model (Model) -- Model to write. filename (str | PathLike) -- Output file path. allow_constant (bool) -- Whether to allow a constant term in the objective function. Defaults to True. 例外: RuntimeError -- If the model is invalid for the LP format (e.g., contains degree 3 or higher, or has invalid variable names / constraint labels).