{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"impl_m_generics.own_params.iter().filter_map(|param|"}]}
        impl_m_generics.own_params.iter().filter_map(|param| match param.kind {
    let impl_m_type_params =
            GenericParamDefKind::Type { synthetic, .. } => Some((param.def_id, synthetic)),