{"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"crate::variance::Variance::Contravariant"}]}
                crate::variance::Variance::Contravariant => chalk_ir::Variance::Contravariant,
                crate::variance::Variance::Invariant => chalk_ir::Variance::Invariant,
                crate::variance::Variance::Bivariant => chalk_ir::Variance::Invariant,