syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"runs:"}]}
source_snippet:                 runs: self.runs.into_iter().map(|(b, s)| (b, f(s))).collect(),
context_before:                 // [1] https://doc.rust-lang.org/1.85.0/src/alloc/vec/spec_from_iter_nested.rs.html#47
context_after:             }