{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"Ty::from_rigid_kind(RigidTy::Ref(reg,"}]}
        Ty::from_rigid_kind(RigidTy::Ref(reg, pointee_ty, mutability))
    pub fn new_ref(reg: Region, pointee_ty: Ty, mutability: Mutability) -> Ty {
    }