code: function mapCacheSet$3(key, value) {
  	  var data = _getMapData(this, key),
  	      size = data.size;
  
  	  data.set(key, value);
  	  this.size += data.size == size ? 0 : 1;
  	  return this;
  	}
docs: Sets the map `key` to `value`.
  
  @private
  @name set
  @memberOf MapCache
  @param {string} key The key of the value to set.
  @param {*} value The value to set.
  @returns {Object} Returns the map cache instance.