pandoc/test/command/934.md

% pandoc -f latex -t native
\newcommand{\ddb}[2]{
  \textit{``#1''}

  \textbf{#2}
}
\ddb{This should be italic and in quotes}{And this is the attribution}
^D
[ Para
    [ Emph
        [ Quoted
            DoubleQuote [ Str "This should be italic and in quotes" ]
        ]
    ]
, Para [ Strong [ Str "And this is the attribution" ] ]
]