diff --git a/eventtypes.lua b/eventtypes.lua
new file mode 100644
index 0000000..d4ceb86
--- /dev/null
+++ b/eventtypes.lua
@@ -0,0 +1,16 @@
+tA = {...}
+eT = {}
+-- "event_type":"send_message"
+for k,v in ipairs(tA) do
+ f=io.open(v)
+ for line in f:lines() do
+  local et = line:match('"event_type":"(.-)"')
+  if et then
+   eT[et] = true
+  end
+ end
+end
+for k,v in pairs(eT) do
+ io.write("- ")
+ print(k)
+end