syntax_data: {"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":"Param"}]}
source_snippet:             Param { pat: Some(pat), ty, ty_span, self_kind, hir_id: Some(param.hir_id) }
context_before:             let pat = self.pattern_from_hir(param.pat);
context_after:         })