syntax_data: {"ast_node_type":"function","tokens":[{"end":72,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet: fn with_span_interner<T, F: FnOnce(&mut SpanInterner) -> T>(f: F) -> T {
context_before: #[inline]
context_after:     crate::with_session_globals(|session_globals| f(&mut session_globals.span_interner.lock()))