{"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"token::StarEq"}]}
            token::StarEq => Some(AssignOp(AssignOpKind::MulAssign)),
            token::MinusEq => Some(AssignOp(AssignOpKind::SubAssign)),
            token::SlashEq => Some(AssignOp(AssignOpKind::DivAssign)),