186     type Ok = ();  typedef
197     fn serialize_bool(self, v: bool) -> Result<Self::Ok> {  in serialize_bool()
201     fn serialize_i8(self, v: i8) -> Result<Self::Ok> {  in serialize_i8()
205     fn serialize_i16(self, v: i16) -> Result<Self::Ok> {  in serialize_i16()
209     fn serialize_i32(self, v: i32) -> Result<Self::Ok> {  in serialize_i32()
213     fn serialize_i64(self, v: i64) -> Result<Self::Ok> {  in serialize_i64()
217     fn serialize_u8(self, v: u8) -> Result<Self::Ok> {  in serialize_u8()
221     fn serialize_u16(self, v: u16) -> Result<Self::Ok> {  in serialize_u16()
225     fn serialize_u32(self, v: u32) -> Result<Self::Ok> {  in serialize_u32()
229     fn serialize_u64(self, v: u64) -> Result<Self::Ok> {  in serialize_u64()
238     fn serialize_f32(self, v: f32) -> Result<Self::Ok> {  in serialize_f32()
242     fn serialize_f64(self, v: f64) -> Result<Self::Ok> {  in serialize_f64()
246     fn serialize_char(self, v: char) -> Result<Self::Ok> {  in serialize_char()
250     fn serialize_str(self, v: &str) -> Result<Self::Ok> {  in serialize_str()
259     fn serialize_bytes(self, _v: &[u8]) -> Result<Self::Ok> {  in serialize_bytes()
263     fn serialize_none(self) -> Result<Self::Ok> {  in serialize_none()
280     fn serialize_unit(self) -> Result<Self::Ok> {  in serialize_unit()
289     fn serialize_unit_struct(self, name: &'static str) -> Result<Self::Ok> {  in serialize_unit_struct()
299     ) -> Result<Self::Ok> {  in serialize_unit_variant()