test/lua: added sample code using custom user data.
test/lua: added sample code using custom user data.
mario-campos/clay,iamrekcah/clay,aep/clay,iamrekcah/clay,aep/clay,iamrekcah/clay,jckarter/clay,aep/clay,jckarter/clay,iamrekcah/clay,mario-campos/clay,mario-campos/clay,jckarter/clay,iamrekcah/clay,jckarter/clay,jckarter/clay,mario-campos/clay,mario-campos/clay,aep/clay,aep/clay,aep/clay,jckarter/clay