<<< native
[ EText TextNormal "Inline, text style, normal line\160"
, EFraction
    NormalFrac
    (EGrouped
       [ EMathOperator "tan" , ESymbol Ord "\8289" , EIdentifier "\952" ])
    (ENumber "67")
, EText
    TextNormal ", numerator and denominator should render script size."
]
>>> tex
\text{Inline, text style, normal line~}\frac{\tan\theta}{67}\text{, numerator and denominator should render script size.}