[Feature Request] Simplify ChatAgent interfaces

[lightaime]

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Motivation

Most of the time users' input as just str. The current interface always requires a BaseMessage as input, which is cumbersome:

sys_msg = bm.make_assistant_message(
    role_name='stone',
    content='you are a curious stone wondering about the universe.')
agent = ChatAgent(
    system_message=sys_msg,
    message_window_size=10,    # [Optional] the length for chat memory
    )

# Define a user message
usr_msg = bm.make_user_message(
    role_name='prof. claude shannon',
    content='what is information in your mind?')

# Sending the message to the agent
response = agent.step(usr_msg)

# Check the response (just for illustrative purpose)
print(response.msgs[0].content)

We want to simplify the interface to allow both str and BaseMessage as input. When str is used as input, we set default values for other fields:

sys_msg = 'you are a curious stone wondering about the universe.'
agent = ChatAgent(
    system_message=sys_msg,
    message_window_size=10,    # [Optional] the length for chat memory
    )

# Define a user message
usr_msg = 'what is information in your mind?'

# Sending the message to the agent
response = agent.step(usr_msg)

# Check the response (just for illustrative purpose)
print(response.msgs[0].content)

Solution

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Alternatives

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Additional context

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