docs: function copy(src, dest) {
      if (!src || !dest)
          return false;
      try {
          fs_extra_1.copySync(src, dest);
          logger_1.log.notify("copied " + src + " to " + dest + ".");
          return true;
      }
      catch (ex) {
          logger_1.log.warn("failed to copy " + src + " to " + dest + ".");
          return false;
      }
  }