pub type Session = (Instant, HashMap<String, String>);Expand description
Defines a single “workflow” state of the planner.
This is used in the Context::state, which represents sessions of per-snippet workflow
planning. This is used when REPL’ing a workflow, as every snippet needs to be planned
individually but relies on where any intermediate results are generated in previous snippets.
Context::state keeps track of the locations of these intermediate results, and this type
defines every such session.
A session is simply a pair of the last time it was accessed (stale sessions g et removed by the garbage collector) and a map of intermediate results names to the domain where they are found.