32 // The type of payload that should be returned.
39 message Payload {  message
43   // Primary contents of payload.
57   // Desired payload type in the response from the server.
61   // Desired payload size in the response from the server.
64   // Optional input payload sent along with the request.
65   Payload payload = 3;  field
88   // Payload to increase message size.
89   Payload payload = 1;  field
99   // Optional input payload sent along with the request.
100   Payload payload = 1;  field
108   // Not expecting any payload from the response.
119   // Desired payload sizes in responses from the server.
136   // Desired payload type in the response from the server.
137   // If response_type is RANDOM, the payload from each response in the stream
138   // might be of different types. This is to simulate a mixed type of payload
145   // Optional input payload sent along with the request.
146   Payload payload = 3;  field
154   // Payload to increase response size.
155   Payload payload = 1;  field