{"ast_node_type":"function","tokens":[{"end":77,"kind":"keyword","start":0,"text":"fn"}]}
    fn add_type_metadata(&self, _function: Self::Function, _typeid: &[u8]) {}
pub trait TypeMembershipCodegenMethods<'tcx>: BackendTypes {
    fn set_type_metadata(&self, _function: Self::Function, _typeid: &[u8]) {}