rvice</span>.t<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;accept&nbsp;:&nbsp;(<span class="keywordsign">'</span>a,&nbsp;<span class="keywordsign">'</span>b)&nbsp;<span class="constructor">Session</span>.st&nbsp;<span class="constructor">Service</span>.t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;(<span class="keywordsign">'</span>a,&nbsp;<span class="keywordsign">'</span>b)&nbsp;<span class="constructor">Session</span>.st<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;request&nbsp;:&