title: SearchKick get total results count
body: <p>I am using <code>SearchKick</code> for searching the data. And i am performing pagination. How can i get the total result count in this case:</p>
  
  <p>My searchkick result:</p>
  
  <pre><code>       #&lt;Searchkick::Results:0x007faeeef8ed88
     @facets=nil,
     @max_score=0.0,
     @options=
      {:load=&gt;true,
       :payload=&gt;
        {:query=&gt;{:match_all=&gt;{}},
         :size=&gt;20,
         :from=&gt;0,
         :sort=&gt;{"created_at"=&gt;:desc},
         :filter=&gt;{:and=&gt;[{:term=&gt;{"sub_category_id"=&gt;2}}]},
         :fields=&gt;[]},
       :size=&gt;20,
       :from=&gt;0,
       :term=&gt;"*"},
     @response=
      {"took"=&gt;4,
       "timed_out"=&gt;false,
       "_shards"=&gt;{"total"=&gt;5, "successful"=&gt;5, "failed"=&gt;0},
       "hits"=&gt;
        {"total"=&gt;1925,
         "max_score"=&gt;nil,
         "hits"=&gt;
          [{"_index"=&gt;"products_..", "_type"=&gt;"product", "_id"=&gt;"..", "_score"=&gt;nil, "sort"=&gt;[..]},....]}},
     @results=
      [#&lt;Product&gt;,...]....
  </code></pre>
  
  <p>One more thing i am not able to do:</p>
  
  <pre><code>SearchKickResult.response
  </code></pre>
  
  <p>It returns me error saying:</p>
  
  <p><code>undefined method</code>response'`</p>