docs: def start(self, version=None, want_rgb=True, **kwargs):
      """Launch the game."""
      del want_rgb  # Unused
      if not os.path.isdir(self.data_dir):
        raise sc_process.SC2LaunchError(
            "Expected to find StarCraft II installed at '%s'. If it's not "
            "installed, do that and run it once so auto-detection works. If "
            "auto-detection failed repeatedly, then set the SC2PATH environment "
            "variable with the correct location." % self.data_dir)
  
      version = version or FLAGS.sc2_version
      if isinstance(version, lib.Version) and not version.data_version:
        # This is for old replays that don't have the embedded data_version.
        version = self._get_version(version.game_version)
      elif isinstance(version, six.string_types):
        version = self._get_version(version)
      elif not version:
        version = self._get_version("latest")
      if version.build_version < lib.VERSIONS["3.16.1"].build_version:
        raise sc_process.SC2LaunchError(
            "SC2 Binaries older than 3.16.1 don't support the api.")
      if FLAGS.sc2_dev_build:
        version = version._replace(build_version=0)
      exec_path = os.path.join(
          self.data_dir, "Versions/Base%05d" % version.build_version,
          self._exec_name)
  
      if not os.path.exists(exec_path):
        raise sc_process.SC2LaunchError("No SC2 binary found at: %s" % exec_path)
  
      return sc_process.StarcraftProcess(
          self, exec_path=exec_path, version=version, **kwargs)