syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"ArmHasGuard(guard.is_some()),"}]}
source_snippet:                     ArmHasGuard(guard.is_some()),
context_before:                     user_tys,
context_after:                     opt_match_place.map(|(x, y)| (x.cloned(), y)),