docs: function Plugin(configPath, options) {
  
    if (arguments.length == 1 && typeof configPath === 'object') {
      options = configPath;
      configPath = options.configPath;
    } else if (arguments.length == 2 && typeof options === 'boolean') {
      options = { verbose: options }; // for backward compatibility
    }
  
    options = options || {};
    configPath = configPath || null;
  
    var verbose = options.verbose || false;
    //var lint = options.lint || false; // TODO: Report about found issues in style sheets
  
    // Create a stream through which each file will pass
    var stream = through.obj(function(file, enc, cb) {
  
      if (file.isNull()) {
        // Do nothing
      } else if (file.isStream()) {
        this.emit('error', new PluginError(PLUGIN_NAME, 'Streams are not supported!'));
        return cb();
      } else if (file.isBuffer() && SUPPORTED_EXTENSIONS.indexOf(path.extname(file.path)) !== -1) {
  
        if (verbose) {
          gutil.log(PLUGIN_NAME, 'Processing ' + gutil.colors.magenta(file.path));
        }
  
        if (configPath && !fs.existsSync(configPath)) {
          this.emit('error', new PluginError(PLUGIN_NAME, 'Configuration file not found: ' + gutil.colors.magenta(configPath)));
          return cb();
        }
  
        configPath = Comb.getCustomConfigPath(configPath || path.join(path.dirname(file.path), '.csscomb.json'));
        var config = Comb.getCustomConfig(configPath);
  
        if (verbose) {
          gutil.log(PLUGIN_NAME, 'Using configuration file ' + gutil.colors.magenta(configPath));
        }
  
        var comb = new Comb(config || 'csscomb');
        var syntax = options.syntax || file.path.split('.').pop();
  
        try {
          var output = comb.processString(
            file.contents.toString('utf8'), {
              syntax: syntax,
              filename: file.path
            });
          file.contents = new Buffer(output);
        } catch (err) {
          this.emit('error', new PluginError(PLUGIN_NAME, file.path + '\n' + err));
        }
      }
  
      // make sure the file goes through the next gulp plugin
      this.push(file);
      // tell the stream engine that we are done with this file
      return cb();
    });
  
    // Return the file stream
    return stream;
  }