326      * @param string[] $tokens The list of tokens for this entity
332     public function addEntity(string $entity, array $tokens): static  argument
342         $new = $this->resolveTokens($tokens);
359      * @param string[] $tokens The raw token list
363     protected function resolveTokens(array $tokens): array  argument
365         $counted = $this->countTokens($tokens);
395      * @param string[] $tokens The raw token list
398     abstract protected function countTokens(array $tokens): array;  argument
486         foreach ($data as $group => $tokens) {
488             foreach (array_keys($tokens) as $tokenId) {
508         foreach ($data as $group => $tokens) {
510             foreach ($tokens as $tokenId => $freq) {