Converting Workflows to Tools

Question

Can a workflow be converted to a tool?

Logan M · Answer

from llama_index.core.tools import FunctionTool async def some_workflow(param1: str, param2: int) -> str: """Useful for some thing.""" result = await workflow.run(param1=param1, param2=param2) return result tool= FunctionTool.from_defaults(async_fn=some_workflow)

dhiraj · Answer

Awesome, this means I can use a Workflow in RouterQueryEngine as a Tool

dhiraj · Answer

I have some queries related to workflows,

is it mandatory to have async workflows?
will all the high level engines provided by the library like RouterQueryEngine or ReAct Agent be reimplemented using workflows in future?

Logan M · Answer

yes. While the steps themselves can be sync or async, the workflow itself is async. If you need a sync entry point, there are utils in python like asyncio.run() for thatEh, probably not (although most have examples showing how to do it in the docs). What I'd like more is just increasing the docs focus on workflows, and provided pre-built workflows in the library that make sense

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Converting Workflows to Tools