option optimize_for = LITE_RUNTIME;

package ClientBuffers;

message UserMessage {
  repeated Instruction instruction = 1;
}

message Instruction {
  extensions 2 to max;
}

message Keystroke {
  optional bytes keys = 4;
}

message ResizeMessage {
  optional int32 width = 5;
  optional int32 height = 6;
}

extend Instruction {
  optional Keystroke keystroke = 2;
  optional ResizeMessage resize = 3;
}