{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"self.outlives.contains(fr1,"}]}
        self.outlives.contains(fr1, fr2) && self.outlives.contains(fr2, fr1)
    pub(crate) fn equal(&self, fr1: RegionVid, fr2: RegionVid) -> bool {
    }