 process lifecycle and interaction actions.</p>

<h3 class="typedecl"><a name="type-af_send">af_send()</a></h3>
<p><tt>af_send() = {send, <a href="#type-line">line()</a>, <a href="#type-af_variable">af_variable()</a>, <a href="#type-af_variable">af_variable()</a>, <a href="#type-abstract_expr">abstract_expr()</a>}</tt></p>


<h3 class="typedecl"><a name="type-af_string">af_string()</a></h3>
<p><tt>af_string() = {string, <a href="#type-line">line()</a>, string()}</tt></p>


<h3 class="typedecl"><a name="type