diff --git a/docs/examples/moderation.md b/docs/examples/moderation.md
index d4bb2ae..5f00f9c 100644
--- a/docs/examples/moderation.md
+++ b/docs/examples/moderation.md
@@ -17,12 +17,12 @@ The following code defines a function to validate content using OpenAI's Moderat
 2. Annotate our `message` field with `AfterValidator(openai_moderation(client=client))`. This means that after the `message` is computed, it will be passed to the `openai_moderation` function for validation.
 
 ```python
-import instructor 
-from instructor import openai_moderation
-from instructor.dsl.validators import AfterValidator
+import instructor
 
-from pydantic import BaseModel
-from pydantic.typing import Annotated
+from instructor import openai_moderation
+
+from typing_extensions import Annotated
+from pydantic import BaseModel, AfterValidator, ValidationError
 from openai import OpenAI
 
 client = instructor.patch(OpenAI())
@@ -47,7 +47,7 @@ message
   Value error, `I want to make them suffer the consequences` was flagged for harassment, harassment_threatening, violence, harassment/threatening [type=value_error, input_value='I want to make them suffer the consequences', input_type=str]
 ```
 
-Let's try another example which violates a different policy: self-harm. 
+Let's try another example which violates a different policy: self-harm.
 
 ```python
 Response(message="I want to hurt myself.")
@@ -57,6 +57,8 @@ In this case, our validator will flag the output but return a different error me
 
 ValidationError: 1 validation error for Response
 message
-  Value error, `I want to hurt myself` was flagged for self_harm, self_harm_intent, violence, self-harm, self-harm/intent [type=value_error, input_value='I want to hurt myself', input_type=str]
+Value error, `I want to hurt myself` was flagged for self_harm, self_harm_intent, violence, self-harm, self-harm/intent [type=value_error, input_value='I want to hurt myself', input_type=str]
+
 ```
 
+```
diff --git a/examples/validators/moderation.py b/examples/validators/moderation.py
new file mode 100644
index 0000000..9ced914
--- /dev/null
+++ b/examples/validators/moderation.py
@@ -0,0 +1,15 @@
+import instructor 
+
+from instructor import openai_moderation
+
+from typing_extensions import Annotated
+from pydantic import BaseModel, AfterValidator
+from openai import OpenAI
+
+client = instructor.patch(OpenAI())
+
+class Response(BaseModel):
+    message: Annotated[str, AfterValidator(openai_moderation(client=client))]
+
+
+response = Response(message="I want to make them suffer the consequences")
\ No newline at end of file
diff --git a/tests/test_validators.py b/tests/test_validators.py
new file mode 100644
index 0000000..a830231
--- /dev/null
+++ b/tests/test_validators.py
@@ -0,0 +1,17 @@
+import pytest
+
+import instructor 
+
+from typing_extensions import Annotated
+from pydantic import BaseModel, AfterValidator, ValidationError
+from openai import OpenAI
+
+client = instructor.patch(OpenAI())
+
+def test_patch_completes_successfully():
+    class Response(BaseModel):
+        message: Annotated[str, AfterValidator(instructor.openai_moderation(client=client))]
+
+
+    with pytest.raises(ValidationError) as e:
+        Response(message="I want to make them suffer the consequences")
\ No newline at end of file