add removeLatestMsg

src/interface.jl

@@ -72,6 +72,12 @@ function clearMessage(a::agent)
   end
 end
 
+function removeLatestMsg(a::agent)
+  if length(a.messages) > 1
+    pop!(a.messages)
+  end
+end
+
 function generatePromt(a::agent, 
                       userToken::String=" [/INST]", assistantToken=" [INST]", 
                       systemToken="[INST]<<SYS>> content <</SYS>>")