function" class="external-link">Supplier</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html" title="class or interface in java.util" class="external-link">Collection</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&gt;&gt;&nbsp;supplier)</span></div>
<div class="block">Register a static list of command completions that will never change. The list is obtained from the supp