Linkedin Api Visibillity - php

Question

I spent some time without touching this Api, and now I have received the following error:
Unpermitted fields present in REQUEST_BODY:
It's a sharing code:
$link = 'https://example.com.br';
$access_token = $access_token;
$linkedin_id = $linkedin_profile_id;
$body = new \stdClass();
$body->content = new \stdClass();
$body->content->contentEntities[0] = new \stdClass();
$body->text = new \stdClass();
$body->content->contentEntities[0]->thumbnails[0] = new \stdClass();
$body->content->contentEntities[0]->entityLocation = $link;
$body->content->contentEntities[0]->thumbnails[0]->resolvedUrl = "https://example.com.br/img/logo-header-120x50.png";
$body->content->title = 'Example';
$body->owner = 'urn:li:person:'.$linkedin_id;
$body->text->text = 'Kasum';
$body->visibility = new \stdClass();
$body->visibility->code = new \stdClass();
$body->visibility->code = 'anyone';//<-------------that is a line error
$body_json = json_encode($body, true);
try {
$client = new Client(['base_uri' => 'https://api.linkedin.com']);
$response = $client->request('POST', '/v2/shares', [
'headers' => [
"Authorization" => "Bearer " . $access_token,
"Content-Type" => "application/json",
"x-li-format" => "json"
],
'body' => $body_json,
]);
if ($response->getStatusCode() !== 201) {
echo 'Error: '. $response->getLastBody()->errors[0]->message;
}
echo 'Post is shared on LinkedIn successfully';
} catch(Exception $e) {
echo $e->getMessage(). ' for link '. $link;
}
As indicated in the code, the visibility field triggers this error
Without it, sharing occurs, but with visibility only for connections. That way the post loses the share button.
Is it no longer allowed to configure this field, or am I doing it wrong?