add NewNullOf and revert NewNull behavior

new_input.go

@@ -51,7 +51,7 @@ func NullableString(value *string) *Nullable[string] {
 		return nil
 	}
 	if *value == "" {
-		return NewNull[string]()
+		return NewNull()
 	}
 	return NewNullableFrom(*value)
 }

scalar.go

@@ -94,8 +94,13 @@ func (nullable Nullable[T]) MarshalJSON() ([]byte, error) {
 	return json.Marshal(nullable.Value)
 }
 
+// NewNull returns a Nullable string that will always marshal into `null`, can be used to unset fields
+func NewNull[T string]() *Nullable[T] {
+	return NewNullOf[T]()
+}
+
 // NewNull returns a Nullable that will always marshal into `null`, can be used to unset fields
-func NewNull[T NullableConstraint]() *Nullable[T] {
+func NewNullOf[T NullableConstraint]() *Nullable[T] {
 	return &Nullable[T]{
 		SetNull: true,
 	}

service_test.go

@@ -351,10 +351,10 @@ func TestUpdateService(t *testing.T) {
 			Input: ol.ServiceUpdateInputV2{
 				Parent:         ol.NewIdentifier(),
 				Id:             ol.NewID("123456789"),
-				Description:    ol.NewNull[string](),
-				Framework:      ol.NewNull[string](),
-				TierAlias:      ol.NewNull[string](),
-				LifecycleAlias: ol.NewNull[string](),
+				Description:    ol.NewNull(),
+				Framework:      ol.NewNull(),
+				TierAlias:      ol.NewNull(),
+				LifecycleAlias: ol.NewNull(),
 			},
 		},
 		{