%%
%% The LaTeX Companion, 3ed
%%
%% Example 15-3-5 on page II-408 in "Managing the \protect \BibTeX  {} and \protect \nxLPack  {biber differences}".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{123.0pt}

%  Use biber program
\makeatletter
\renewcommand\section{\@startsection{section}{1}{\z@}%
                                    {-1.25ex \@plus-1ex \@minus-.2ex}%
                                    {.5ex}%
                                    {\normalfont\large\bfseries}}
\makeatother
\setlength\parindent{0pt}

%StartShownPreambleCommands

\usepackage[style=authoryear, uniquename=allfull]{biblatex}
\addbibresource{tlc-ex.bib}
\DeclareSourcemap{
 \maps{
   \map[overwrite]{
    \step[fieldsource=author-biblatex,fieldtarget=author]
    \step[fieldset=abstract,null]%suppress abstract
      }}}
%StopShownPreambleCommands

\begin{document}
The author is \citename{sourcemap-test}[given-family]{author}
\end{document}
