docs: function nodeModulePaths(from) {
    // guarantee that 'from' is absolute.
    from = path.resolve(from);
  
    // note: this approach *only* works when the path is guaranteed
    // to be absolute.  Doing a fully-edge-case-correct path.split
    // that works on both Windows and Posix is non-trivial.
    var splitRe = process.platform === 'win32' ? /[\/\\]/ : /\//;
    var paths = [];
    var parts = from.split(splitRe);
  
    for (var tip = parts.length - 1; tip >= 0; tip--) {
      // don't search in .../node_modules/node_modules
      if (parts[tip] === 'node_modules') {
        continue;
      }
  
      var dir = parts.slice(0, tip + 1).concat('node_modules').join(path.sep);
      paths.push(dir);
    }
  
    return paths;
  }