syntax_data: {"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// (paths, types, lifetimes, constants, etc.) as a side-effect
context_before: /// Interface for outputting user-facing "type-system entities"
context_after: /// (e.g. formatting, like `PrettyPrinter` implementors do) or by