fix(bedrock_httpx.py): handle empty stop string

litellm/llms/bedrock_httpx.py

@@ -1394,6 +1394,8 @@ class AmazonConverseConfig:
                 optional_params["stream"] = value
             if param == "stop":
                 if isinstance(value, str):
+                    if len(value) == 0:  # converse raises error for empty strings
+                        continue
                     value = [value]
                 optional_params["stop_sequences"] = value
             if param == "temperature":

litellm/tests/test_bedrock_completion.py

@@ -636,6 +636,45 @@ def test_bedrock_claude_3(image_url):
         pytest.fail(f"Error occurred: {e}")
 
 
+@pytest.mark.parametrize(
+    "stop",
+    [""],
+)
+@pytest.mark.parametrize(
+    "model",
+    [
+        "anthropic.claude-3-sonnet-20240229-v1:0",
+        # "meta.llama3-70b-instruct-v1:0",
+        # "anthropic.claude-v2",
+        # "mistral.mixtral-8x7b-instruct-v0:1",
+    ],
+)
+def test_bedrock_stop_value(stop, model):
+    try:
+        litellm.set_verbose = True
+        data = {
+            "max_tokens": 100,
+            "stream": False,
+            "temperature": 0.3,
+            "messages": [
+                {"role": "user", "content": "hey, how's it going?"},
+            ],
+            "stop": stop,
+        }
+        response: ModelResponse = completion(
+            model="bedrock/{}".format(model),
+            **data,
+        )  # type: ignore
+        # Add any assertions here to check the response
+        assert len(response.choices) > 0
+        assert len(response.choices[0].message.content) > 0
+
+    except RateLimitError:
+        pass
+    except Exception as e:
+        pytest.fail(f"Error occurred: {e}")
+
+
 @pytest.mark.parametrize(
     "system",
     ["You are an AI", [{"type": "text", "text": "You are an AI"}], ""],