docs: function tryParseMetaJson (rootDir, expectedMetaFilename, mandatoryMetaKeys, messages) {
    // TODO: If dir has blueprint.json on the end then don't bother appending.
    const metaJsonPath = path.join(rootDir, expectedMetaFilename)
    try {
      return parseMetaJson(metaJsonPath, mandatoryMetaKeys, messages)
    } catch (err) {
      messages.error({
        name: 'blueprintJsonFail',
        message: 'Unable to load blueprint.json file at ' + metaJsonPath,
        body: err
      })
    }
  }