syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"AutoBorrowMutability::Mut"}]}
source_snippet:             AutoBorrowMutability::Mut { allow_two_phase_borrow } => BorrowKind::Mut {
context_before:         match *self {
context_after:                 kind: match allow_two_phase_borrow {