else if pname == "utf8_length" then
return v.int_instance(args[0].val.as(NativeString).utf8_length(args[1].to_i, args[2].to_i))
end
else if pname == "utf8_length" then
return v.int_instance(args[0].val.as(NativeString).utf8_length(args[1].to_i, args[2].to_i))
end