1272 Server  section in Interoperability Test Case Descriptions
1294 ### EmptyCall
1299 ### UnaryCall
1307 ### CacheableUnaryCall
1320 ### CompressedResponse
1327 ### CompressedRequest
1335 ### StreamingInputCall
1342 ### StreamingOutputCall
1351 ### FullDuplexCall
1361 ### Echo Status
1369 ### Echo Metadata
1377 ### Observe ResponseParameters.interval_us
1388 ### Echo Auth Information
1419 ### Backend metrics report