To integrate LlamaIndex with Streamlit and display the intermediate steps or status of hierarchical agents in the Streamlit UI, you can use a custom callback handler. This handler will capture the intermediate steps and update the Streamlit UI. Here is an example of how you can achieve this:
Create a custom callback handler: This handler will capture the intermediate steps and update the Streamlit UI.
Integrate the callback handler with the create_llama_agent function: Pass the custom callback handler to the create_llama_agent function.
Update the Streamlit UI: Use Streamlit's st.write or st.text to display the intermediate steps. Here is a sample implementation:
import streamlit as st
from llama_index.core.langchain_helpers.agents.agents import create_llama_agent
from llama_index.core.bridge.langchain import BaseLLM, BaseCallbackManager, AgentType
from llama_index.core.langchain_helpers.agents.toolkits import LlamaToolkit
class StreamlitCallbackHandler(BaseCallbackManager):
def __init__(self):
self.steps = []
def on_event(self, event_type, payload):
if event_type == "function_call":
self.steps.append(f"Function Call: {payload['function_call']}")
elif event_type == "function_output":
self.steps.append(f"Function Output: {payload['function_output']}")
self.update_ui()
def update_ui(self):
st.write("### Intermediate Steps")
for step in self.steps:
st.text(step)
# Initialize StreamlitCallbackHandler
callback_handler = StreamlitCallbackHandler()
# Create a LlamaToolkit instance (assuming you have a toolkit instance)
toolkit = LlamaToolkit()
# Initialize the LLM (replace with your LLM instance)
llm = BaseLLM()
# Create the agent with the custom callback manager
agent_executor = create_llama_agent(
toolkit=toolkit,
llm=llm,
agent=AgentType.ZERO_SHOT_REACT_DESCRIPTION,
callback_manager=callback_handler
)
# Example task to run
task_input = "Your input here"
# Run the agent executor
output = agent_executor.run(task_input)
# Display the final output
st.write("### Final Output")
st.text(output)
In this example:
StreamlitCallbackHandler captures the intermediate steps and updates the Streamlit UI.
create_llama_agent is used to create the agent with the custom callback manager.
The intermediate steps and final output are displayed in the Streamlit UI.
This approach allows you to visualize the intermediate steps of hierarchical agents in the Streamlit UI, similar to how StreamlitCallbackHandler works with LangChain 1(https://github.com/run-llama/llama_index/blob/main/llama-index-legacy/llama_index/legacy/agent/react/step.py)2(https://github.com/run-llama/llama_index/blob/main/llama-index-core/llama_index/core/langchain_helpers/agents/agents.py).
7条答案
按热度按时间sulc1iza1#
解:在步骤模式下,可以访问思维/行动。
$x_{1}e^{0}f_{1}x$
ssgvzors2#
请允许我澄清一下。代理运行正常,在Streamlit应用程序中输出结果。但是有层次结构的代理在运行。因此,作为中间步骤,我想在Streamlit UI中显示状态。类似于LangChain如何使用streamlitcallbackhandler实现这一点。
要实现这一点的方法是什么?
zynd9foi3#
To integrate LlamaIndex with Streamlit and display the intermediate steps or status of hierarchical agents in the Streamlit UI, you can use a custom callback handler. This handler will capture the intermediate steps and update the Streamlit UI. Here is an example of how you can achieve this:
create_llama_agent
function: Pass the custom callback handler to thecreate_llama_agent
function.st.write
orst.text
to display the intermediate steps.Here is a sample implementation:
In this example:
StreamlitCallbackHandler
captures the intermediate steps and updates the Streamlit UI.create_llama_agent
is used to create the agent with the custom callback manager.This approach allows you to visualize the intermediate steps of hierarchical agents in the Streamlit UI, similar to how
StreamlitCallbackHandler
works with LangChain 1(https://github.com/run-llama/llama_index/blob/main/llama-index-legacy/llama_index/legacy/agent/react/step.py)2(https://github.com/run-llama/llama_index/blob/main/llama-index-core/llama_index/core/langchain_helpers/agents/agents.py).8zzbczxx4#
@dosu Super. And how to implement the same with OpenAI agent with streaming as True
hgqdbh6s5#
要使用流媒体设置为
True
的 OpenAI 代理实现相同的功能,您可以使用OpenAIAgentWorker
类中提供的astream_chat
方法。该方法异步处理流媒体响应。以下是如何调整之前示例的方法:OpenAIAgentWorker
集成:将自定义回调处理程序传递给OpenAIAgentWorker
。st.write
或st.text
在 Streamlit UI 中显示中间步骤。以下是一个示例实现:
krugob8w6#
如果我想将Streamlit Callback Handler类与Streamlit st解耦,如何抽象这个?
t9aqgxwy7#
要将
StreamlitCallbackHandler
类与 Streamlit 的st
函数解耦,可以将特定于 Streamlit 的功能抽象到单独的接口或类中。这样,回调处理程序可以在不同的上下文中使用,而不受 Streamlit 的限制。以下是如何实现这一点的示例:
StreamlitCallbackHandler
以使用该接口。在这个例子中:
OutputHandler
是处理输出的接口。StreamlitOutputHandler
是使用 Streamlit 的st.write
函数实现的OutputHandler
。StreamingGeneratorCallbackHandler
现在在其构造函数中接受一个OutputHandler
示例,并使用它写入令牌。这样,您可以为不同的上下文创建
OutputHandler
的不同实现,使StreamingGeneratorCallbackHandler
独立于 Streamlit 1(https://github.com/run-llama/llama_index/blob/main/llama-index-legacy/llama_index/legacy/langchain_helpers/streaming.py)2(https://github.com/run-llama/llama_index/blob/main/llama-index-core/llama_index/core/langchain_helpers/streaming.py)。