import { CurveObject } from "../../dependencies/conway-geom/index.js";
import SimpleMemoization from "../core/simple_memoization.js";
import IfcStepModel from "./ifc_step_model.js";
import { IfcCurve } from "./ifc4_gen/index.js";
/**
 * IFC curve cache, allows dumping OBJ and hashes of curves
 */
export default class IfcModelCurves extends SimpleMemoization<CurveObject> {
    readonly model: IfcStepModel;
    /**
     * Construct this.
     *
     * @param model
     */
    constructor(model: IfcStepModel);
    /**
     * Get the OBJs for all the curves in the cache (lazily)
     *
     * @yields {[IfcCurve, string]} Curves with their matching OBJ as a string
     */
    objs(): IterableIterator<[
        IfcCurve,
        string
    ]>;
}
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