Multiple Schemas

Multiple Schemas Review We just covered state schema and reducers. Typically, all graph nodes communicate with a single schema. Also, this single schema contains the graph's input and output keys / channels. Goals But, there are cases where we may want a bit more control over this: * Internal nodes may pass information that is *not required* in the graph's input / output. * We may also want to use different input / output schemas for the graph. The output might, for example, only contain a single relevant output key. We'll discuss a few ways to customize graphs with multiple schemas.