<div class="chatlog__message-group">
  <div id="chatlog__message-container-503386747036762123" class="chatlog__message-container" data-message-id="503386747036762123">
    <div class="chatlog__message">
      <div class="chatlog__message-aside"><img class="chatlog__avatar" src="https://cdn.discordapp.com/avatars/291075091025100810/39d60f97ea2bca395f1992c42f25107c.png?size=512" alt="Avatar" loading="lazy"></div>
      <div class="chatlog__message-primary">
        <div class="chatlog__header"><span class="chatlog__author" style="color:rgb(155,89,182)" title="kishikawakatsumi" data-user-id="291075091025100810">Kishikawa Katsumi</span> <a href="/channels/375206337937801216?category=main&amp;channel=swift-zatsu&amp;message_id=503387153481596939"><span class="chatlog__timestamp" title="Sunday, October 21, 2018 1:59 AM"></span></a><a href="#chatlog__message-container-503386747036762123">10/21/2018 1:59 AM</a></div>
        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve">あ、それはそうですね。</span></div>
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  <div id="chatlog__message-container-503386908374859796" class="chatlog__message-container" data-message-id="503386908374859796">
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      <div class="chatlog__message-aside">
        <div class="chatlog__short-timestamp" title="Sunday, October 21, 2018 1:59 AM">1:59 AM</div>
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      <div class="chatlog__message-primary">
        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve">メソッドに何らかの表明する手段が必要。。。コンパイラでやってくれるといいですね。</span></div>
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  <div id="chatlog__message-container-503387153481596939" class="chatlog__message-container" data-message-id="503387153481596939">
    <div class="chatlog__message">
      <div class="chatlog__message-aside">
        <div class="chatlog__short-timestamp" title="Sunday, October 21, 2018 2:00 AM">2:00 AM</div>
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      <div class="chatlog__message-primary">
        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve">nil以外にも「外部の入力そのまま渡してるよ」っていう警告を出したりとか言語やLinterによってあるから、そういう仕組みかな。 型以外の情報で狭める表明。</span></div>
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