import { Model } from './model';
import { MessageLevel } from './msglevel';
export declare namespace Interior {
    type OrderingAlgorithm = 'none' | 'qmd' | 'amd' | 'symamd';
    interface Options {
        msgLevel?: MessageLevel;
        ordering?: OrderingAlgorithm;
    }
    type ReturnCode = 'ok' | 'no_data' | 'no_convergence' | 'iteration_limit' | 'instability';
    function solve(model: Model, opts: Interior.Options): Interior.ReturnCode;
}