this
directive may be used to simplify the writing of predicate definitions by
allowing the programmer to omit the <code class="docutils literal notranslate"><span class="pre">Module:</span></code> prefix when using the
predicates listed in the directive (as long as the predicate calls do
not occur as arguments for non-standard Prolog meta-predicates not
declared on the adapter files). It is also possible to include operator
declarations in the second argument.</p>
<p>This directive is also taken into accou