code: function factory( query, context = document ) {
  	const converter = bsc();
  	const selectorEngine = new SelectorEngine();
  	const bemQuery = new BEMQuery( query, context, converter, selectorEngine );
  
  	return bemQuery;
  }
docs: BEMQuery instance factory.
  
  @param {String|Iterable|HTMLElement} query Selector or
  existing elements collection upon which the new elements collection
  should be created.
  @param {Document|HTMLElement|BEMQuery} context Context from which
  elements should be fetched.
  @return {BEMQuery} New BEMQuery instance.