syntax_data: {"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"hir::AssignOpKind::BitXorAssign"}]}
source_snippet:         hir::AssignOpKind::BitXorAssign => AssignOp::BitXorAssign,
context_before:         hir::AssignOpKind::RemAssign => AssignOp::RemAssign,
context_after:         hir::AssignOpKind::BitAndAssign => AssignOp::BitAndAssign,