How to use the fold.convert function in fold

globals.warn("No valid geometry found in SVG, be sure to ungroup all and remove all clipping masks.");
            return false;
        }

        foldData = FOLD.filter.collapseNearbyVertices(foldData, globals.vertTol);
        foldData = FOLD.filter.removeLoopEdges(foldData);//remove edges that points to same vertex
        foldData = FOLD.filter.removeDuplicateEdges_vertices(foldData);//remove duplicate edges
        // foldData = FOLD.filter.subdivideCrossingEdges_vertices(foldData, globals.vertTol);//find intersections and add vertices/edges

        foldData = findIntersections(foldData, globals.vertTol);
        //cleanup after intersection operation
        foldData = FOLD.filter.collapseNearbyVertices(foldData, globals.vertTol);
        foldData = FOLD.filter.removeLoopEdges(foldData);//remove edges that points to same vertex
        foldData = FOLD.filter.removeDuplicateEdges_vertices(foldData);//remove duplicate edges

        foldData = FOLD.convert.edges_vertices_to_vertices_vertices_unsorted(foldData);
        foldData = removeStrayVertices(foldData);//delete stray anchors
        foldData = removeRedundantVertices(foldData, 0.01);//remove vertices that split edge

        foldData.vertices_vertices = FOLD.convert.sort_vertices_vertices(foldData);
        foldData = FOLD.convert.vertices_vertices_to_faces_vertices(foldData);

        foldData = edgesVerticesToVerticesEdges(foldData);
        foldData = removeBorderFaces(foldData);//expose holes surrounded by all border edges

        foldData = reverseFaceOrder(foldData);//set faces to counter clockwise

        return processFold(foldData);
    }

function processFold(fold, returnCreaseParams){

        rawFold = JSON.parse(JSON.stringify(fold));//save pre-triangulated for for save later
        //make 3d
        for (var i=0;i0) {
            fold = splitCuts(fold);
            fold = FOLD.convert.edges_vertices_to_vertices_vertices_unsorted(fold);
            fold = removeRedundantVertices(fold, 0.01);//remove vertices that split edge
        }
        delete fold.vertices_vertices;
        delete fold.vertices_edges;

        foldData = triangulatePolys(fold, true);

        for (var i=0;i