import { RGroupAttachmentPoint } from './rgroupAttachmentPoint';
/**
 * This is data model for Sgrou attachment point.
 * each of the property is according to the specification of CT files for "SAP" instruction.
 * Implemented under requirements: https://github.com/epam/ketcher/issues/2467
 */
export declare class SGroupAttachmentPoint {
    /**
     * This is the index of the atom in the S-group that serves as the attachment point.
     */
    readonly atomId: number;
    /**
     * This is the index of the atom that is being replaced or removed at the attachment point
     * when the S-group is connected to another structure.
     * If no atom is being replaced, this value should be set to zero.
     *
     * NOTE: The logic is not supported in the current implementation of Ketcher.
     * Only reading from file and saving to file.
     */
    readonly leaveAtomId: number | undefined;
    /**
     * 2 character attachment identifier (for example, H or T for head/tail).
     * No validation of any kind is performed, and ‘ ’ is allowed.
     * ISIS/Desktop uses the first character as the ID of the leaving group
     * to attach if the bond between ooo and iii is deleted, and uses the second character
     * to indicate the sequence polarity: l for left, r for right, and x for none (a crosslink).
     *
     * NOTE: The logic is not supported in the current implementation of Ketcher.
     * Only reading from file and saving to file.
     */
    readonly attachmentId: string | undefined;
    readonly attachmentPointNumber?: number;
    constructor(atomId: number, leaveAtomId: number | undefined, attachmentId: string | undefined, attachmentPointNumber?: number);
    clone(atomIdMap: Map<number, number>): SGroupAttachmentPoint;
    /**
     * Trick: used for cloned struct for tooltips, for preview, for templates
     *
     * Why?
     * Currently, tooltips are implemented with removing sgroups (wrong implementation)
     * That's why we need to mark atoms as sgroup attachment points.
     *
     * If we change preview approach to flagged (option for showing sgroups without abbreviation),
     * then we will be able to remove this hack.
     */
    convertToRGroupAttachmentPointForDisplayPurpose(attachedAtomId: number): RGroupAttachmentPoint;
}