hack: list required nullable properties first before non-required pro…

…perties

Workaround nullable refs not being handled (fixed in #23)

template/plugin/pdk_types.py.ejs

@@ -28,7 +28,16 @@ class <%- pythonTypeName(schema.name) %>(JSONWizard):
 <% }) %>
 
 <% schema.properties.forEach(p => { -%>
-<% if (p.nullable || !p.required) {%>
+<% if (p.nullable && p.required) {%>
+  <% if (p.description) { -%>
+    # <%- formatCommentBlock(p.description, "# ") %>
+  <% } -%>
+  <%- p.name %>: <%- toPythonType(p, p.required) %>
+<% } %>
+<% }) %>
+
+<% schema.properties.forEach(p => { -%>
+<% if (!p.required) {%>
   <% if (p.description) { -%>
     # <%- formatCommentBlock(p.description, "# ") %>
   <% } -%>