--- native_class.mustache	2023-06-22 12:56:11.090350406 -0500
+++ native_class1.mustache	2023-06-22 12:57:14.498184792 -0500
@@ -91,14 +91,14 @@
     {{/isDateTime}}
     {{#isNullable}}
     } else {
-      json[r'{{{baseName}}}'] = null;
+    //  json[r'{{{baseName}}}'] = null;
     }
     {{/isNullable}}
     {{^isNullable}}
       {{^required}}
         {{^defaultValue}}
     } else {
-      json[r'{{{baseName}}}'] = null;
+    //  json[r'{{{baseName}}}'] = null;
     }
         {{/defaultValue}}
       {{/required}}
@@ -114,17 +114,6 @@
     if (value is Map) {
       final json = value.cast<String, dynamic>();
 
-      // Ensure that the map contains the required keys.
-      // Note 1: the values aren't checked for validity beyond being non-null.
-      // Note 2: this code is stripped in release mode!
-      assert(() {
-        requiredKeys.forEach((key) {
-          assert(json.containsKey(key), 'Required key "{{{classname}}}[$key]" is missing from JSON.');
-          assert(json[key] != null, 'Required key "{{{classname}}}[$key]" has a null value in JSON.');
-        });
-        return true;
-      }());
-
       return {{{classname}}}(
   {{#vars}}
     {{#isDateTime}}