code: protected boolean getBufferEnabled(Dsn dsn) {
          String bufferEnabled = Lookup.lookup(BUFFER_ENABLED_OPTION, dsn);
          if (bufferEnabled != null) {
              return Boolean.parseBoolean(bufferEnabled);
          }
          return BUFFER_ENABLED_DEFAULT;
      }
docs: Whether or not buffering is enabled.
  
  @param dsn Sentry server DSN which may contain options.
  @return Whether or not buffering is enabled.