feat(LM Studio): Add response_format param for LM Studio to config (#2502)

tests/llms/test_lm_studio.py

@@ -42,3 +42,30 @@ def test_generate_response_without_tools(mock_lm_studio_client):
     )
 
     assert response == "I'm doing well, thank you for asking!"
+
+def test_generate_response_specifying_response_format(mock_lm_studio_client):
+    config = BaseLlmConfig(
+        model="lmstudio-community/Meta-Llama-3.1-8B-Instruct-GGUF/Meta-Llama-3.1-8B-Instruct-Q4_K_M.gguf",
+        temperature=0.7,
+        max_tokens=100,
+        top_p=1.0,
+        lmstudio_response_format={"type": "json_schema"},  # Specifying the response format in config
+    )
+    llm = LMStudioLLM(config)
+    messages = [
+        {"role": "system", "content": "You are a helpful assistant."},
+        {"role": "user", "content": "Hello, how are you?"},
+    ]
+
+    response = llm.generate_response(messages)
+
+    mock_lm_studio_client.chat.completions.create.assert_called_once_with(
+        model="lmstudio-community/Meta-Llama-3.1-8B-Instruct-GGUF/Meta-Llama-3.1-8B-Instruct-Q4_K_M.gguf",
+        messages=messages,
+        temperature=0.7,
+        max_tokens=100,
+        top_p=1.0,
+        response_format={"type": "json_schema"},
+    )
+
+    assert response == "I'm doing well, thank you for asking!"