feat: Add utils to convert sync functions to async functions (#690)

Co-authored-by: Wendong-Fan <[email protected]>

camel/utils/async_func.py

@@ -0,0 +1,42 @@
+# =========== Copyright 2023 @ CAMEL-AI.org. All Rights Reserved. ===========
+# Licensed under the Apache License, Version 2.0 (the “License”);
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an “AS IS” BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# =========== Copyright 2023 @ CAMEL-AI.org. All Rights Reserved. ===========
+import asyncio
+from copy import deepcopy
+
+from camel.functions.openai_function import OpenAIFunction
+
+
+def sync_funcs_to_async(funcs: list[OpenAIFunction]) -> list[OpenAIFunction]:
+    r"""Convert a list of Python synchronous functions to Python
+    asynchronous functions.
+
+    Args:
+        funcs (list[OpenAIFunction]): List of Python synchronous
+            functions in the :obj:`OpenAIFunction` format.
+
+    Returns:
+        list[OpenAIFunction]: List of Python asynchronous functions
+            in the :obj:`OpenAIFunction` format.
+    """
+    async_funcs = []
+    for func in funcs:
+        sync_func = func.func
+
+        def async_callable(*args, **kwargs):
+            return asyncio.to_thread(sync_func, *args, **kwargs)  # noqa: B023
+
+        async_funcs.append(
+            OpenAIFunction(async_callable, deepcopy(func.openai_tool_schema))
+        )
+    return async_funcs

test/agents/test_chat_agent.py

@@ -40,6 +40,7 @@
     RoleType,
     TaskType,
 )
+from camel.utils.async_func import sync_funcs_to_async
 
 parametrize = pytest.mark.parametrize(
     'model',
@@ -420,6 +421,52 @@ def test_tool_calling_sync():
     assert tool_calls[0].result == 16
 
 
+@pytest.mark.model_backend
+@pytest.mark.asyncio
+async def test_tool_calling_math_async():
+    system_message = BaseMessage(
+        role_name="assistant",
+        role_type=RoleType.ASSISTANT,
+        meta_dict=None,
+        content="You are a help assistant.",
+    )
+    math_funcs = sync_funcs_to_async(MATH_FUNCS)
+    model_config = ChatGPTConfig(tools=[*math_funcs])
+    model = ModelFactory.create(
+        model_platform=ModelPlatformType.OPENAI,
+        model_type=ModelType.GPT_3_5_TURBO,
+        model_config_dict=model_config.__dict__,
+    )
+    agent = ChatAgent(
+        system_message=system_message,
+        model=model,
+        tools=math_funcs,
+    )
+
+    ref_funcs = math_funcs
+
+    assert len(agent.func_dict) == len(ref_funcs)
+
+    user_msg = BaseMessage(
+        role_name="User",
+        role_type=RoleType.USER,
+        meta_dict=dict(),
+        content="Calculate the result of: 2*8-10.",
+    )
+    agent_response = await agent.step_async(user_msg)
+
+    tool_calls: List[FunctionCallingRecord] = agent_response.info['tool_calls']
+    for called_func in tool_calls:
+        print(str(called_func))
+
+    assert len(tool_calls) > 0
+    assert str(tool_calls[0]).startswith("Function Execution")
+
+    assert tool_calls[0].func_name == "mul"
+    assert tool_calls[0].args == {"a": 2, "b": 8}
+    assert tool_calls[0].result == 16
+
+
 @pytest.mark.model_backend
 @pytest.mark.asyncio
 async def test_tool_calling_async():