37 pub struct CallOption {  struct
44 impl CallOption {  argument
46     pub fn idempotent(mut self, is_idempotent: bool) -> CallOption {  in idempotent()  argument
56     pub fn wait_for_ready(mut self, wait_for_ready: bool) -> CallOption {  in wait_for_ready()  argument
66     pub fn cacheable(mut self, cacheable: bool) -> CallOption {  in cacheable()  argument
76     pub fn write_flags(mut self, write_flags: WriteFlags) -> CallOption {  in write_flags()  argument
82     pub fn timeout(mut self, timeout: Duration) -> CallOption {  in timeout()  argument
93     pub fn headers(mut self, meta: Metadata) -> CallOption {  in headers()  argument
109         mut opt: CallOption,  in unary_async()  argument
133         mut opt: CallOption,  in client_streaming()  argument
162         mut opt: CallOption,  in server_streaming()  argument
192         mut opt: CallOption,  in duplex_streaming()  argument