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                <pre class="signature" style="margin-right: 54px;">createAlias(string|integer  <span class="argument">$distinct_id</span>, string|integer  <span class="argument">$alias</span>) : array</pre>
                <p><em>An alias to be merged with the distinct_id. Each alias can only map to one distinct_id. This is helpful when you want to associate a generated id (such as a session id) to a user id or username.</em><