859 pub struct grpc_call {  struct
860     _unused: [u8; 0],
1836         parent_call: *mut grpc_call,  in grpc_channel_create_call()
1843     ) -> *mut grpc_call;  in grpc_channel_create_call()
1861         parent_call: *mut grpc_call,  in grpc_channel_create_registered_call()
1867     ) -> *mut grpc_call;  in grpc_channel_create_registered_call()
1872     pub fn grpc_call_arena_alloc(call: *mut grpc_call, size: usize) -> *mut ::std::os::raw::c_void;  in grpc_call_arena_alloc()
1896         call: *mut grpc_call,  in grpc_call_start_batch()
1922     pub fn grpc_census_call_set_context(call: *mut grpc_call, context: *mut census_context);  in grpc_census_call_set_context()
1982         call: *mut grpc_call,  in grpc_call_cancel()
1997         call: *mut grpc_call,  in grpc_call_cancel_with_status()
2006     pub fn grpc_call_ref(call: *mut grpc_call);  in grpc_call_ref()
2011     pub fn grpc_call_unref(call: *mut grpc_call);  in grpc_call_unref()
2024         call: *mut *mut grpc_call,  in grpc_server_request_call()
2064         call: *mut *mut grpc_call,  in grpc_server_request_registered_call()
3052         call: *mut grpc_call,  in grpc_call_set_credentials()
3834     ) -> *mut grpc_call;  in grpcwrap_request_call_context_ref_call()
3839     ) -> *mut grpc_call;  in grpcwrap_request_call_context_get_call()
3871         parent_call: *mut grpc_call,  in grpcwrap_channel_create_call()
3879     ) -> *mut grpc_call;  in grpcwrap_channel_create_call()
3914         call: *mut grpc_call,  in grpcwrap_call_start_unary()
3925         call: *mut grpc_call,  in grpcwrap_call_start_client_streaming()
3934         call: *mut grpc_call,  in grpcwrap_call_start_server_streaming()
3945         call: *mut grpc_call,  in grpcwrap_call_start_duplex_streaming()
3954         call: *mut grpc_call,  in grpcwrap_call_recv_initial_metadata()
3961         call: *mut grpc_call,  in grpcwrap_call_send_message()
3971         call: *mut grpc_call,  in grpcwrap_call_send_close_from_client()
3977         call: *mut grpc_call,  in grpcwrap_call_send_status_from_server()
3991         call: *mut grpc_call,  in grpcwrap_call_recv_message()
3998         call: *mut grpc_call,  in grpcwrap_call_start_serverside()
4005         call: *mut grpc_call,  in grpcwrap_call_send_initial_metadata()
4017         call: *mut grpc_call,  in grpcwrap_call_kick_completion_queue()