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Description
Is your feature request related to a problem? Please describe.
The result builder is technically part of the graph, but it isn't shown -- nor is its output. This can make it hard to see what a whole execution actually produced.
Describe the solution you'd like
The result builder node should show up under execution - along with the data observability, etc.
Describe alternatives you've considered
We already do this for materializers -- they are effectively have a result builder component.
Additional context
Would allow us to compare the output of two executions more easily.