span> VariableType = decltype(ObserveMethodType::type_indicator_);</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    <span class="keyword">protected</span>:</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;        std::string dtw_distance_filefullpath_;                    <span class="comment">/* the path for DTW distance. */</span></div><div class="line"