syntax_data: {"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":".map(|(a,"}]}
source_snippet:             .map(|(a, b)| ((a, b), false))
context_before:         let inputs_and_output = iter::zip(a_inputs.iter(), b_inputs.iter())
context_after:             .chain(iter::once(((a.output(), b.output()), true)))