add mock client for fast prototyping code

src/ell/__init__.py

@@ -5,6 +5,7 @@
 
 
 from ell.lmp.simple import simple
+from ell.lmp.simple import mock
 from ell.lmp.tool import tool
 from ell.lmp.complex import complex
 from ell.types.message import system, user, assistant, Message, ContentBlock

src/ell/lmp/__init__.py

@@ -1,2 +1,3 @@
 from ell.lmp.simple import simple
+from ell.lmp.simple import mock
 from ell.lmp.complex import complex

src/ell/lmp/simple.py

@@ -1,7 +1,16 @@
 from functools import wraps
-from typing import Any, Optional
+from typing import Any, Optional, Callable
 
 from ell.lmp.complex import complex
+from ell.providers.mock import MockAIClient
+
+
+def mock(model: str, client: Optional[Any] = None,  exempt_from_tracking=False, mock_func:Callable[..., Any]=None, **api_params):
+  """Mock decortoar should accept everything passed to simple"""
+  if mock_func:
+      api_params['mock_func'] = mock_func
+
+  return simple(model, client=MockAIClient(), exempt_from_tracking=exempt_from_tracking, **api_params)
 
 
 def simple(model: str, client: Optional[Any] = None,  exempt_from_tracking=False, **api_params):

src/ell/providers/__init__.py

@@ -1,6 +1,7 @@
 import ell.providers.openai
 import ell.providers.groq
 import ell.providers.anthropic
+import ell.providers.mock
 # import ell.providers.mistral
 # import ell.providers.cohere
 # import ell.providers.gemini

src/ell/providers/mock.py

@@ -0,0 +1,62 @@
+import random
+import string
+
+from typing import Optional, Dict, Any, List, Type, Tuple
+from ell.provider import Provider, EllCallParams, Metadata
+from ell.types import Message
+from ell.types.message import LMP
+from ell.configurator import config, register_provider
+from typing import Any, Callable, Dict, List, Optional, Tuple, Type, Union, cast
+
+
+class MockAIClient:
+
+    def __init__(self, **kwargs):
+        self.api_key = "mock"
+
+    def chat_completions_create(self, **kwargs):
+        return None
+
+
+class MockAIProvider(Provider):
+    dangerous_disable_validation = True
+
+    def provider_call_function(
+        self, client: MockAIClient, api_call_params: Optional[Dict[str, Any]] = None
+    ) -> Callable[..., Any]:
+        return client.chat_completions_create
+
+    def translate_to_provider(self, ell_call: EllCallParams) -> Dict[str, Any]:
+        return ell_call.api_params.copy()
+
+    def default_mock_func(self) -> Tuple[List[Message], Metadata]:
+        results = []
+        random_str = "".join(
+            random.choices(
+                string.ascii_letters + string.digits, k=random.randint(1, 40)
+            )
+        )
+        results.append(
+            Message(
+                role=("user"),
+                content="mock_" + random_str,
+            )
+        )
+        return results, Metadata
+
+    def translate_from_provider(
+        self,
+        _provider_response: Any,
+        _ell_call: EllCallParams,
+        provider_call_params: Dict[str, Any],
+        _origin_id: Optional[str] = None,
+        _logger: Optional[Callable[..., None]] = None,
+    ) -> Tuple[List[Message], Metadata]:
+        if "mock_func" in provider_call_params:
+            mock_func = provider_call_params["mock_func"]
+            return [Message(role=("user"), content=mock_func())], Metadata
+        else:
+            return self.default_mock_func()
+
+
+register_provider(MockAIProvider(), MockAIClient)