index.js
function _use(config) {
    var _config = this._config;

    Object.keys(config).forEach(function(key) {
      _config[key] = config[key];
    });

    return this;
  }
function _use(config) {
    var _config = this._config;

    Object.keys(config).forEach(function(key) {
      _config[key] = config[key];
    });

    return this;
  }
function _use ( config ) { var _config = this . _config ; Object . keys ( config ) . forEach ( function ( key ) { _config [ key ] = config [ key ] ; } ) ; return this ; }
Extend the ticker's config.
@param {{ limit: Number, async: Boolean, task: Function, stop: Function }} config
@returns {Ticker}
Extend the ticker s config .