: This routine gets called by <code>compel_rpc_call()</code> and <code>compel_rpc_call_sync()</code>
+
: This routine gets called by <code>compel_rpc_call()</code> and <code>compel_rpc_call_sync()</code>. The <code>arg</code> points to the memory with arguments, see the [[#Arguments passing]] section below.