}
FLWRExpr newFlwr = new FLWRExpr();
ForVariable forVar = new ForVariable();
forVar.setValue(funcall);
newFlwr.addClause(new ForClause(forVar));
VarRef varref = new VarRef(forVar);
steps.set(0, varref);
newFlwr.setFilteredReturnExpr(pathExpr);
MapExpr mapExpr = new MapExpr(colpath, forVar, newFlwr);