docs: function appendModelPath (modelPath, id, internal) {
    const addedModelPath = getModelPath(id)
    if (internal) {
      if (modelPath === '') {
        return `properties._internal.${addedModelPath}`
      }
      return `${modelPath}.properties._internal.${addedModelPath}`
    }
    if (modelPath === '') {
      return addedModelPath
    }
    return `${modelPath}.${addedModelPath}`
  }