{"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"self.try_to_bits(target_size).unwrap_or_else(|size|"}]}
        self.try_to_bits(target_size).unwrap_or_else(|size| {
    pub fn to_bits(self, target_size: Size) -> u128 {
            bug!("expected int of size {}, but got size {}", target_size.bytes(), size.bytes())