diff --git a/dev_packages/generators/lib/src/exchangeable_object_generator.dart b/dev_packages/generators/lib/src/exchangeable_object_generator.dart
index acbf0a6a..cbde4c7d 100644
--- a/dev_packages/generators/lib/src/exchangeable_object_generator.dart
+++ b/dev_packages/generators/lib/src/exchangeable_object_generator.dart
@@ -497,9 +497,9 @@ class ExchangeableObjectGenerator
       }
     } else if (elementType.getDisplayString(withNullability: false) ==
         "EdgeInsets") {
-      return "MapEdgeInsets.fromMap($value?.cast<String, dynamic>())${isNullable ? '!' : ''}";
+      return "MapEdgeInsets.fromMap($value?.cast<String, dynamic>())${!isNullable ? '!' : ''}";
     } else if (elementType.getDisplayString(withNullability: false) == "Size") {
-      return "MapSize.fromMap($value?.cast<String, dynamic>())${isNullable ? '!' : ''}";
+      return "MapSize.fromMap($value?.cast<String, dynamic>())${!isNullable ? '!' : ''}";
     } else if (elementType.getDisplayString(withNullability: false) ==
         "DateTime") {
       if (!isNullable) {
diff --git a/lib/src/types/print_job_attributes.g.dart b/lib/src/types/print_job_attributes.g.dart
index e87932fb..16e16fa1 100644
--- a/lib/src/types/print_job_attributes.g.dart
+++ b/lib/src/types/print_job_attributes.g.dart
@@ -128,7 +128,7 @@ class PrintJobAttributes {
           PrintJobMediaSize.fromMap(map['mediaSize']?.cast<String, dynamic>()),
       resolution: PrintJobResolution.fromMap(
           map['resolution']?.cast<String, dynamic>()),
-      margins: MapEdgeInsets.fromMap(map['margins']?.cast<String, dynamic>())!,
+      margins: MapEdgeInsets.fromMap(map['margins']?.cast<String, dynamic>()),
       footerHeight: map['footerHeight'],
       headerHeight: map['headerHeight'],
       printableRect: InAppWebViewRect.fromMap(