Adding async support to get_human_input (#466)

* Adding async support to get_human_input

* Adjust code for Code formatting testing fail

* Adjust the test_async_get_human_input.py to run async on test

* Adjust the test_async_get_human_input.py for pre-commit-check error

* Adjust the test_async_get_human_input.py for pre-commit-check error v2

* Adjust remove unnecessary register_reply

* Adjust test to use asyncio call

* Adjust go back to not use asyncio

test/agentchat/test_async_get_human_input.py

@@ -0,0 +1,35 @@
+import asyncio
+import autogen
+import pytest
+from test_assistant_agent import KEY_LOC, OAI_CONFIG_LIST
+
+
+@pytest.mark.asyncio
+async def test_async_get_human_input():
+    try:
+        import openai
+    except ImportError:
+        return
+    config_list = autogen.config_list_from_json(OAI_CONFIG_LIST, KEY_LOC)
+
+    # create an AssistantAgent instance named "assistant"
+    assistant = autogen.AssistantAgent(
+        name="assistant",
+        max_consecutive_auto_reply=2,
+        llm_config={"request_timeout": 600, "seed": 41, "config_list": config_list, "temperature": 0},
+    )
+
+    user_proxy = autogen.UserProxyAgent(name="user", human_input_mode="ALWAYS", code_execution_config=False)
+
+    async def custom_a_get_human_input(prompt):
+        return "This is a test"
+
+    user_proxy.a_get_human_input = custom_a_get_human_input
+
+    user_proxy.register_reply([autogen.Agent, None], autogen.ConversableAgent.a_check_termination_and_human_reply)
+
+    await user_proxy.a_initiate_chat(assistant, clear_history=True, message="Hello.")
+
+
+if __name__ == "__main__":
+    test_async_get_human_input()