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<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><code class="computeroutput"><a class="link" href="functional/env_var.html#id-1_3_34_5_44_1_1_7_3_5_1-bb">proto::functional::env_var::operator()</a></code></li></ul></div>
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<td><p><span class="term">Returns:</span></p></td>
<td><code clas