</span>  -&gt; <span class='ident' data-type="(Belt.Result.t(int, 'a), int => int) => Belt.Result.t(
  int,
  'a
)">Belt.Result.map</span> <span class='operator' data-type="Belt.Result.t(int, 'a)">__x</span> (fun <span class='pattern-ident' data-type="int">x</span>  -&gt; <span class='ident' data-type="int">x</span> <span class='operator' data-type="(int, int) => int">+</span> <span class='int' data-type="int">10</span>)))
     <span class='operator' data-type="(
  Belt.Result.t(int, 'a),
  Belt.Result.t(in