public Builder mergeFrom(com.google.rpc.RetryInfo other) {
   if (other == com.google.rpc.RetryInfo.getDefaultInstance()) return this;
   if (other.hasRetryDelay()) {
     mergeRetryDelay(other.getRetryDelay());
   }
   onChanged();
   return this;
 }
 public com.google.rpc.RetryInfo getDefaultInstanceForType() {
   return com.google.rpc.RetryInfo.getDefaultInstance();
 }