syntax_data: {"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"liberated_sig.inputs_and_output,"}]}
source_snippet:                 liberated_sig.inputs_and_output,
context_before:             assumed_wf_types.extend(itertools::zip_eq(
context_after:                 fn_sig_spans(tcx, def_id),