docs: function(action) {
  		this._updates.filter(function(update) {
  			return (
  				update.type === edbml.Update.TYPE_HARD ||
  				Object.keys(update.ids).every(function(id) {
  					return !this._hardupdates[id];
  				}, this)
  			);
  		}, this).forEach(function(update) {
  			action(update);
  		});
  	}