async getNamepaths (options) {
    const data = await this.getTemplateData(options)
    const namepaths = {}
    const kinds = [
      'module', 'class', 'constructor', 'mixin', 'member',
      'namespace', 'constant', 'function', 'event', 'typedef', 'external'
    ]
    for (const kind of kinds) {
      namepaths[kind] = data
        .filter(identifier => identifier.kind === kind)
        .map(identifier => identifier.longname)
    }
    return namepaths
  }
Returns all [jsdoc namepaths](https://jsdoc.app/about-namepaths.html) found in the supplied source code.
@param {object} - options to pass to {@link module:jsdoc-to-markdown#getTemplateData}
@returns {object}
@category async