105     type SerializeStruct = S::SerializeStruct;  typedef
292     ) -> Result<Self::SerializeStruct, Self::Error> {  in serialize_struct()
575         type SerializeStruct = SerializeStruct<E>;  typedef
748         ) -> Result<Self::SerializeStruct, E> {  in serialize_struct()
937     pub struct SerializeStruct<E> {  struct
938         name: &'static str,
939         fields: Vec<(&'static str, Content)>,
940         error: PhantomData<E>,
943     impl<E> ser::SerializeStruct for SerializeStruct<E>  implementation
1027     type SerializeStruct = FlatMapSerializeStruct<'a, M>;  typedef
1174     ) -> Result<Self::SerializeStruct, Self::Error> {  in serialize_struct()