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<b>SismemberCommand: Contents</b><br> <a href="#SISMEMBER _key_ _member_">SISMEMBER _key_ _member_</a><br> <a href="#Return value">Return value</a>
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<h1 class="wikiname">SismemberCommand</h1>
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#sidebar <a href="SetCommandsSidebar.html">SetCommandsSidebar</a><h1><a name="SISMEMBER _key_ _member_">SISMEMBER _key_ _member_</a></h1>
<i>Time complexity O(1)</i><blockquote>Return 1 if <i>member</i> is a member of the set stored at <i>key</i>, otherwise0 is returned.</blockquote>
<h2><a name="Return value">Return value</a></h2><a href="ReplyTypes.html">Integer reply</a>, specifically:<br/><br/><pre class="codeblock python" name="code">
1 if the element is a member of the set
0 if the element is not a member of the set OR if the key does not exist
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