Function bindings_label 

pub fn bindings_label(source: &str) -> String

One-line display label for a scenario-level bindings: scope.

Summarizes the names the scope DEFINES (x := …, shared y := …, extern z: T = …, input w: T) instead of echoing raw source — the first source line is often a comment, which read as an unnatural, repeating emission in the scenario-tree readout. Comment-only / empty sources degrade to a bare bindings:.