Clarifai-LiteLLM integration (#1)

* intg v1 clarifai-litellm

* Added more community models and testcase

* Clarifai-updated markdown docs

litellm/tests/test_clarifai_completion.py

@@ -0,0 +1,67 @@
+import sys, os
+import traceback
+from dotenv import load_dotenv
+
+load_dotenv()
+import os, io
+
+sys.path.insert(
+    0, os.path.abspath("../..")
+)  # Adds the parent directory to the system path
+import pytest
+import litellm
+from litellm import embedding, completion, completion_cost, Timeout, ModelResponse
+from litellm import RateLimitError
+
+# litellm.num_retries = 3
+litellm.cache = None
+litellm.success_callback = []
+user_message = "Write a short poem about the sky"
+messages = [{"content": user_message, "role": "user"}]
+
+@pytest.fixture(autouse=True)
+def reset_callbacks():
+    print("\npytest fixture - resetting callbacks")
+    litellm.success_callback = []
+    litellm._async_success_callback = []
+    litellm.failure_callback = []
+    litellm.callbacks = []
+    
+def test_completion_clarifai_claude_2_1():
+    print("calling clarifai claude completion")
+    import os 
+    
+    clarifai_pat = os.environ["CLARIFAI_API_KEY"]
+    
+    try:
+        response =  completion(
+            model="clarifai/anthropic.completion.claude-2_1",
+            messages=messages,
+            max_tokens=10,
+            temperature=0.1,
+        )
+        print(response)
+        
+    except RateLimitError:
+        pass
+    
+    except Exception as e:
+        pytest.fail(f"Error occured: {e}")
+        
+
+def test_completion_clarifai_mistral_large():
+    try:
+        litellm.set_verbose = True
+        response: ModelResponse = completion(
+            model="clarifai/mistralai.completion.mistral-small",
+            messages=messages,
+            max_tokens=10,
+            temperature=0.78,
+        )
+        # 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}")