method and what it should not do. (Specifically: handling
breaking of last line of preceeding paragraph.)
\begin{methoddesc}[writer]{send_paragraph}{blankline}
Produce a paragraph separation of at least \var{blankline} blank
lines, or the equivelent. The \var{blankline} value will be an
-integer.
+integer. Note that the implementation will receive a call to
+\method{send_line_break()} before this call if a line break is needed;
+this method should not include ending the last line of the paragraph.
+It is only responsible for vertical spacing between paragraphs.
\end{methoddesc}
\begin{methoddesc}[writer]{send_hor_rule}{*args, **kw}