in src/consumers/typehints_from_ast_va.hack [15:23]
function typehints_from_ast_va(
ConsumerContext $context,
?HHAST\Node ...$nodes
): vec<ScannedTypehint> {
return $nodes
|> Vec\map($$, $c ==> $c is HHAST\ListItem<_> ? $c->getItem() : $c)
|> Vec\map($$, $c ==> typehint_from_ast($context, $c))
|> Vec\filter_nulls($$);
}