JavaScript bindings for Mojo message validation

mojo/public/tools/bindings/pylib/mojom/generate/module.py

Index: mojo/public/tools/bindings/pylib/mojom/generate/module.py
diff --git a/mojo/public/tools/bindings/pylib/mojom/generate/module.py b/mojo/public/tools/bindings/pylib/mojom/generate/module.py
index 448f7474e195a0ac1a68f2bc6b1e81ada1d3e68e..724fbb97ac8babd7bf33bd3721b55fd64758ea6a 100644
--- a/mojo/public/tools/bindings/pylib/mojom/generate/module.py
+++ b/mojo/public/tools/bindings/pylib/mojom/generate/module.py
@@ -400,3 +400,11 @@ def IsAnyHandleKind(kind):
 
 def IsMoveOnlyKind(kind):
   return IsObjectKind(kind) or IsAnyHandleKind(kind)
+
+
+def HasCallbacks(interface):
+  for method in interface.methods:
+    if method.response_parameters != None:
+      return True
+  return False
+