nfigbody</B> commands.  If the &quot;implementation&quot; part
is kept in a separate file, it can be sourced again and
again as bugs are fixed, to support interactive development.
When using the &quot;tcl&quot; mode in the <B>emacs</B> editor, the
&quot;interface&quot; and &quot;implementation&quot; parts can be kept in the
same file; as bugs are fixed, individual bodies can be
highlighted and sent to the test application.
<P>
The name &quot;<I>className</I><B>::</B><I>function</I>&quot;
identifies the meth