Adding new moderation model constants (#875)

moderation.go

@@ -14,6 +14,8 @@ import (
 // If you use text-moderation-stable, we will provide advanced notice before updating the model.
 // Accuracy of text-moderation-stable may be slightly lower than for text-moderation-latest.
 const (
+	ModerationOmniLatest   = "omni-moderation-latest"
+	ModerationOmni20240926 = "omni-moderation-2024-09-26"
 	ModerationTextStable   = "text-moderation-stable"
 	ModerationTextLatest   = "text-moderation-latest"
 	// Deprecated: use ModerationTextStable and ModerationTextLatest instead.
@@ -25,6 +27,8 @@ var (
 )
 
 var validModerationModel = map[string]struct{}{
+	ModerationOmniLatest:   {},
+	ModerationOmni20240926: {},
 	ModerationTextStable:   {},
 	ModerationTextLatest:   {},
 }

moderation_test.go

@@ -37,6 +37,8 @@ func TestModerationsWithDifferentModelOptions(t *testing.T) {
 		getModerationModelTestOption(openai.GPT3Dot5Turbo, openai.ErrModerationInvalidModel),
 		getModerationModelTestOption(openai.ModerationTextStable, nil),
 		getModerationModelTestOption(openai.ModerationTextLatest, nil),
+		getModerationModelTestOption(openai.ModerationOmni20240926, nil),
+		getModerationModelTestOption(openai.ModerationOmniLatest, nil),
 		getModerationModelTestOption("", nil),
 	)
 	client, server, teardown := setupOpenAITestServer()