code: function(config, target) {
  
  		this.guid = Lava.guid++;
  		if (config.duration) {
  			this._duration = config.duration;
  		}
  		this._target = target;
  		this._transition = config.transition || Lava.transitions[config.transition_name || 'linear'];
  		this._config = config;
  
  	}
docs: Constructs the class instance
  @param {_cAnimation} config Settings, `this._config`
  @param {*} target `this._target`