{"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"fx.bcx.ins().brif(is_null,"}]}
                fx.bcx.ins().brif(is_null, target_block, &[], continued, &[]);
                let continued = fx.bcx.create_block();
                fx.bcx.switch_to_block(continued);