cleanup, tests

tests/helper.py

@@ -1,7 +1,19 @@
 
 
 def tool_dummy(a: int, b: str):
+    """
+    tool_dummy
+    Args:
+        a: how much
+        b: how text?
+    """
     return "result_%d_%s" % (a, b)
 
+
 def tool_dummy2(text: str):
+    """
+    tool_dummy2
+    Args:
+        text: only text?
+    """
     return text.upper()