/**
 * Convert a molecule to a molfile object compatible with the visualizer.
 * @param {import('openchemlib').Molecule} molecule - The molecule to convert.
 * @param {object} [options={}] - Options to control atom highlighting and grouping.
 * @param {boolean} [options.diastereotopic] - If true, group atoms by diastereotopic IDs.
 * @param {boolean} [options.atomMapNo] - If true, group atoms by their atom map number. Atoms with no map number (0) are excluded from highlighting.
 * @param {boolean} [options.customAtomLabel] - If true, group atoms by their custom atom label. Atoms with no custom label are excluded from highlighting.
 * @param {boolean} [options.heavyAtomHydrogen] - If true, copy each hydrogen's highlight label to its parent heavy atom. When used with diastereotopic, implicit hydrogens are added internally to compute their diastereotopic IDs.
 * @param {boolean} [options.collapseHydrogens] - If true, remove explicit hydrogens from the molfile. Implies heavyAtomHydrogen.
 * @returns {{ type: string, value: string, _highlight: Array, _atoms: object }} A molfile object with highlight and atom mapping information.
 */
export function toVisualizerMolfile(molecule: import("openchemlib").Molecule, options?: {
    diastereotopic?: boolean | undefined;
    atomMapNo?: boolean | undefined;
    customAtomLabel?: boolean | undefined;
    heavyAtomHydrogen?: boolean | undefined;
    collapseHydrogens?: boolean | undefined;
}): {
    type: string;
    value: string;
    _highlight: any[];
    _atoms: object;
};
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