import type { EmscriptenModule, SolverOptions, SolveResult } from './types.js';
/** Low-level wrapper around the HiGHS optimization solver. */
export declare class HiGHS {
    private module;
    private highsPtr;
    private freed;
    protected constructor(module: EmscriptenModule, highsPtr: number);
    /** Creates a new HiGHS solver instance. */
    static create(options?: SolverOptions): Promise<HiGHS>;
    /** Parses a problem from a string in the given format (e.g., 'lp', 'mps'). */
    parse(content: string, format: string): Promise<void>;
    /** Sets a HiGHS option by name. Supports boolean, integer, real, and string values. */
    setParam(name: string, value: boolean | number | string): void;
    /** Solves the loaded problem and returns the result. */
    solve(): Promise<SolveResult>;
    private extractSolution;
    /** Frees the HiGHS instance. Safe to call multiple times. */
    free(): void;
    private ensureNotFreed;
}
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