function get_insert_position($lines)
{
$docPositions = array_filter($lines, function ($line) {
return Str::contains($line, '{% lang_operator');
});
$documentedLibraries = array_map(function ($line) {
return Str::firstWord(Str::substringAfter($line, 'lang_operator'));
}, $docPositions);
foreach ($documentedLibraries as $position => $library) {
if (strcmp($library, 'RxPHP') <= 0) {
continue;
}
return $position;
}
return count($lines) - 2;
// at the end of the file by default
}