23 // The type of payload that should be returned.
36 message Payload {  message
39   // Primary contents of payload.
45   // Desired payload type in the response from the server.
49   // Desired payload size in the response from the server.
53   // Optional input payload sent along with the request.
54   Payload payload = 3;  field
65   // Payload to increase message size.
66   Payload payload = 1;  field
76   // Optional input payload sent along with the request.
77   Payload payload = 1;  field
79   // Not expecting any payload from the response.
90   // Desired payload sizes in responses from the server.
101   // Desired payload type in the response from the server.
102   // If response_type is RANDOM, the payload from each response in the stream
103   // might be of different types. This is to simulate a mixed type of payload
110   // Optional input payload sent along with the request.
111   Payload payload = 3;  field
116   // Payload to increase response size.
117   Payload payload = 1;  field