ndex.html">Invariant</a> : <span class="keyword">functor</span> (<a href="Invariant/argument-1-I/index.html">I</a> : <a href="../../../Bastet/Interface/index.html#module-type-INVARIANT">Bastet.Interface.INVARIANT</a>) <span>&#45;&gt;</span> <span class="keyword">functor</span> (<a href="Invariant/argument-2-AA/index.html">AA</a> : <span class="keyword">sig</span> ... <span class="keyword">end</span>) <span>&#45;&gt;</span> <span class="keyword">sig</span> ... <span class="keyword">end</span></code></div></d