Another example.

app.py

@@ -54,6 +54,24 @@ undefined8 __cdecl FUN_004025f0(byte *param_1,int param_2)
   return 0x3632000137;
 }
 
+""","""
+void __thiscall FUN_00404f30(void *this,char param_1,uint param_2)
+
+{
+  char *pcVar1;
+  
+  if ((param_1 != '\0') && (0xf < *(uint *)((int)this + 0x18))) {
+    pcVar1 = *(char **)((int)this + 4);
+    if (param_2 != 0) {
+      std::_Traits_helper::copy_s<>((char *)((int)this + 4),0x10,pcVar1,param_2);
+    }
+    FUN_00405320(pcVar1);
+  }
+  *(undefined4 *)((int)this + 0x18) = 0xf;
+  std::basic_string<>::_Eos((basic_string<> *)this,param_2);
+  return;
+}
+
 """],
                     inputs="text", outputs="text")
 demo.queue()