docs: function filePaths (file, opts) {
    let files = (Array.isArray(file) ? file : [file]).map((f) => f.toLowerCase())
    opts = opts || {}
    if (opts.full) return getAllDrives().then((paths) => findFiles(files, paths))
    let exts = files.map((f) => path.extname(f).substr(1))
    exts = exts.filter((v, i, a) => a.indexOf(v) === i)
    let paths = opts.hints || (exts.length === 1
      ? (defaultHintsForExt[exts[0]] || defaultHints)
      : defaultHints
    )
    return findFiles(files, paths)
  }