{"ast_node_type":"variable","tokens":[{"end":91,"kind":"keyword","start":0,"text":"let"}]}
    let line = if loc_details.line { Scalar::from_u32(line) } else { Scalar::from_u32(0) };
    };
    let col = if loc_details.column { Scalar::from_u32(col) } else { Scalar::from_u32(0) };