<<< native
[ EStyled
    TextMonospace
    [ EArray
        [ AlignLeft ]
        [ [ [ EText TextNormal "0123456789" ] ]
        , [ [ EText TextNormal "ABCDEFGHIJKLMNOPQRSTUVWXYZ" ] ]
        , [ [ EText TextNormal "abcdefghijklmnopqrstuvwxyz" ] ]
        ]
    ]
]
>>> tex
\mathtt{\begin{array}{l}
\text{0123456789} \\
\text{ABCDEFGHIJKLMNOPQRSTUVWXYZ} \\
\text{abcdefghijklmnopqrstuvwxyz} \\
\end{array}}