{"ast_node_type":"import","tokens":[{"end":111,"kind":"keyword","start":0,"text":"assert!(b_offset.bytes()"}]}
                assert!(b_offset.bytes() > 0); // in `operand_field` we use the offset to tell apart the fields
                let b_offset = a_size.align_to(b.align(self).abi);
                let a_val = alloc.read_scalar(