Method install

3rdparty/libprocess/include/process/process.hpp:216–221

* Sets up a handler for messages with the specified name. */

   * Sets up a handler for messages with the specified name.
   */
  void install(
      const std::string& name,
      const MessageHandler& handler)
  {
    handlers.message[name] = handler;
  }

  /**
   * @copydoc process::ProcessBase::install