docs: function stdout(context, file, fileSet, next) {
    if (!file.data.unifiedEngineGiven) {
      debug('Ignoring programmatically added file')
      next()
    } else if (stats(file).fatal || context.output || !context.out) {
      debug('Ignoring writing to `streamOut`')
      next()
    } else {
      debug('Writing document to `streamOut`')
      context.streamOut.write(file.toString(), next)
    }
  }