/**
   * Indicates that the constructor or factory method of a collection, usually an immutable set,
   * throws an {@link IllegalArgumentException} when presented with duplicate elements instead of
   * collapsing them to a single element or including duplicate instances in the collection.
   */
  REJECTS_DUPLICATES_AT_CREATION,

  SUPPORTS_ADD,
  SUPPORTS_REMOVE,
  SUPPORTS_ITERATOR_REMOVE,

  /**
   * Indicates that the constructor or factory method of a collection, usually an immutable set,
   * throws an {@link IllegalArgumentException} when presented with duplicate elements instead of
   * collapsing them to a single element or including duplicate instances in the collection.
   */
  REJECTS_DUPLICATES_AT_CREATION,

  SUPPORTS_ADD,
  SUPPORTS_REMOVE,
  SUPPORTS_ITERATOR_REMOVE,

   * <i>adding</i> to the returned set is not possible.
   */
  Set<K> keySet();

  /**
   * Returns a view collection containing the key from each key-value pair in this multimap,
   * <i>without</i> collapsing duplicates. This collection has the same size as this multimap, and
   * {@code keys().count(k) == get(k).size()} for all {@code k}.
   *

        existNextPage = startWithOffset < (long) (allPageCount - 1) * (long) pageSize;
        currentPageNumber = start / pageSize + 1;
        if (existNextPage && size() < pageSize) {
            // collapsing
            existNextPage = false;
            allPageCount = currentPageNumber;
        }
        currentStartRecordNumber = allRecordCount != 0 ? start + 1 : 0;

    }
  }

  // Test collapse() a little differently than the rest, as we really want to
  // cover lots of different configurations of input text
  public void testCollapse() {
    // collapsing groups of '-' into '_' or '-'
    doTestCollapse("-", "_");
    doTestCollapse("x-", "x_");
    doTestCollapse("-x", "_x");
    doTestCollapse("--", "_");
    doTestCollapse("x--", "x_");

    }
  }

  // Test collapse() a little differently than the rest, as we really want to
  // cover lots of different configurations of input text
  public void testCollapse() {
    // collapsing groups of '-' into '_' or '-'
    doTestCollapse("-", "_");
    doTestCollapse("x-", "x_");
    doTestCollapse("-x", "_x");
    doTestCollapse("--", "_");
    doTestCollapse("x--", "x_");

`hidden${EVENT_KEY}`,\n  CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`\n}\n\nconst ClassName = {\n  SHOW       : 'show',\n  COLLAPSE   : 'collapse',\n  COLLAPSING : 'collapsing',\n  COLLAPSED  : 'collapsed'\n}\n\nconst Dimension = {\n  WIDTH  : 'width',\n  HEIGHT : 'height'\n}\n\nconst Selector = {\n  ACTIVES     : '.show, .collapsing',\n  DATA_TOGGLE : '[data-toggle=\"collapse\"]'\n}\n\n/**\n * ------------------------------------------------------------------------\n * Class Definition\n...

`hidden${EVENT_KEY}`,\n  CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`\n}\n\nconst ClassName = {\n  SHOW       : 'show',\n  COLLAPSE   : 'collapse',\n  COLLAPSING : 'collapsing',\n  COLLAPSED  : 'collapsed'\n}\n\nconst Dimension = {\n  WIDTH  : 'width',\n  HEIGHT : 'height'\n}\n\nconst Selector = {\n  ACTIVES     : '.show, .collapsing',\n  DATA_TOGGLE : '[data-toggle=\"collapse\"]'\n}\n\n/**\n * ------------------------------------------------------------------------\n * Class Definition\n...

ft],mt={toggle:!0,parent:""},pt={toggle:"boolean",parent:"(string|element)"},vt={SHOW:"show"+gt,SHOWN:"shown"+gt,HIDE:"hide"+gt,HIDDEN:"hidden"+gt,CLICK_DATA_API:"click"+gt+".data-api"},yt="show",Et="collapse",Ct="collapsing",Tt="collapsed",bt="width",St="height",Dt=".show, .collapsing",It='[data-toggle="collapse"]',wt=function(){function a(e,t){this._isTransitioning=!1,this._element=e,this._config=this._getConfig(t),this._triggerArray=[].slice.call(document.querySelectorAll('[data-toggle="colla...

ft],mt={toggle:!0,parent:""},pt={toggle:"boolean",parent:"(string|element)"},vt={SHOW:"show"+gt,SHOWN:"shown"+gt,HIDE:"hide"+gt,HIDDEN:"hidden"+gt,CLICK_DATA_API:"click"+gt+".data-api"},yt="show",Et="collapse",Ct="collapsing",Tt="collapsed",bt="width",St="height",Dt=".show, .collapsing",It='[data-toggle="collapse"]',wt=function(){function a(e,t){this._isTransitioning=!1,this._element=e,this._config=this._getConfig(t),this._triggerArray=[].slice.call(document.querySelectorAll('[data-toggle="colla...