add agent notebook and documentation (microsoft#1052)

* add agent notebook and documentation

* fix bug

* set flush to True when printing msg in agent

* add a math problem in agent notebook

* remove

* header

* improve notebook doc

* notebook update

* improve notebook example

* improve doc

* improve notebook doc

* improve print

* doc

* human_input_mode

* human_input_mode str

* indent

* indent

* Update flaml/autogen/agent/user_proxy_agent.py

Co-authored-by: Chi Wang <[email protected]>

* Update notebook/autogen_agent.ipynb

Co-authored-by: Chi Wang <[email protected]>

* Update notebook/autogen_agent.ipynb

Co-authored-by: Chi Wang <[email protected]>

* Update notebook/autogen_agent.ipynb

Co-authored-by: Chi Wang <[email protected]>

* renaming and doc format

* typo

---------

Co-authored-by: Chi Wang <[email protected]>

Author: qingyun-wu

flaml/autogen/agent/agent.py

@@ -37,8 +37,8 @@ def _send(self, message, recipient):
 
     def _receive(self, message, sender):
         """Receive a message from another agent."""
-        print("\n****", self.name, "received message from", sender.name, "****\n")
-        print(message)
+        print("\n****", self.name, "received message from", sender.name, "****\n", flush=True)
+        print(message, flush=True)
         self._conversations[sender.name].append({"content": message, "role": "user"})
 
     def receive(self, message, sender):

flaml/autogen/agent/user_proxy_agent.py

@@ -119,4 +119,5 @@ def receive(self, message, sender):
             return
 
         self._consecutive_auto_reply_counter[sender.name] += 1
+        print("\n>>>>>>>> NO HUMAN INPUT RECEIVED. USING AUTO REPLY FOR THE USER...", flush=True)
         self.auto_reply(message, sender, default_reply=reply)