n><span class="token punctuation">(</span><span class="parameters "><span class="parameter ">unit<span class="token operator">: </span><a href="../-window-frame-unit/index.html">WindowFrameUnit</a><span class="token punctuation">, </span></span><span class="parameter ">start<span class="token operator">: </span><a href="../-window-frame-bound/index.html">WindowFrameBound</a><span class="token punctuation">, </span></span><span class="parameter ">end<span class="token operator">: </span><a href="../-window-f