* Adds item to collection

* Binds handler to specified event

* Checks if collection contains item

* Unbinds handler from specified event. If handler is not specified, all callbacks are unbound.

* Iterates over collection

* Emits event

* Returns entity by a key. * If there is no data by a key it triggers "get" argument to receive data and put it in a cache. * * @param key - Key

* Filters collection by callback

* Reduces collection with callback and initial value

* Tries to find element by callback and throw if not found * @throws

* Checks if modifiers is an array of plain strings or {@link TBemKeyModifiers} * @param {TBemModifiers} modifiers * @returns {boolean}

* Maps collection with callback

* Checks if collection is not readonly and throws if it is * @throws

* Clears collection

* Checks if every element satisfies callback

* Checks if modifiers is an object with boolean values for classname keys * @param {TBemModifiers} modifiers * @returns {boolean}

* Returns fresh new shiny copy of collection