cspwizard commented on code in PR #2523:
URL: https://github.com/apache/thrift/pull/2523#discussion_r1034014372


##########
compiler/cpp/src/thrift/generate/t_py_generator.cc:
##########
@@ -2742,8 +2765,71 @@ string t_py_generator::type_name(t_type* ttype) {
   return ttype->get_name();
 }
 
+string t_py_generator::arg_hint(t_type* type) {
+  if(gen_type_hints_) {
+      return ": " + type_to_py_hint(type);
+  }
+
+  return "";
+}
+
+string t_py_generator::func_hint(t_type* type) {
+  if(gen_type_hints_) {
+      return " -> " + type_to_py_hint(type);
+  }
+
+  return "";
+}
+
+/**
+ * Converts the parse type to a Python type hint
+ */
+string t_py_generator::type_to_py_hint(t_type* type) {
+  return "typing.Optional[" + type_to_py_type(type) + "]";

Review Comment:
   Can you give more details? I've tested it with c# server on both 
reference/value types, everything worked fine



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