Define StateGraph using yaml

[freshchen]

Whether to support defining StateGraph using yaml

[hwchase17]

we've thought about this a bunch! most langgraph objects contain arbitrary python code in nodes/edges. how would you want to represent that in yaml?

[freshchen]

As you said, arbitrary python code is difficult to express as DSL, especially conditinal implementation.

I just think that using DSL such as yaml can make my graph definition more intuitive and flexible. I want to know if the professional version has this capability.

[rog555]

restricted python, jmespath and/or simpleeval perhaps?

[npuichigo]

Or serialize LCEL?