apply {
    this.protocol = protocol
  }

fun Response.Builder.commonCode(code: Int) =
  apply {
    this.code = code
  }

fun Response.Builder.commonMessage(message: String) =
  apply {
    this.message = message
  }

fun Response.Builder.commonHeader(
  name: String,
  value: String,
) = apply {
  headers[name] = value
}