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      <p class="shortcomment cmt">Augments Seq with a toIndex method that returns a new Index instance.</p><div class="fullcomment"><div class="comment cmt"><p>Augments Seq with a toIndex method that returns a new Index instance.</p><p>For example,</p><pre><span class="kw">val</span> i = IndexedSeq(<span class="num">1</span>,<span class="num">2</span>,<span class="nu