createTokenHandler example

public function getKey(): string
    {
        return 'access_token';
    }

    public function createAuthenticator(ContainerBuilder $container, string $firewallName, array $config, ?string $userProviderId): string
    {
        $successHandler = isset($config['success_handler']) ? new Reference($this->createAuthenticationSuccessHandler($container, $firewallName, $config)) : null;
        $failureHandler = isset($config['failure_handler']) ? new Reference($this->createAuthenticationFailureHandler($container, $firewallName, $config)) : null;
        $authenticatorId = sprintf('security.authenticator.access_token.%s', $firewallName);
        $extractorId = $this->createExtractor($container, $firewallName, $config['token_extractors']);
        $tokenHandlerId = $this->createTokenHandler($container, $firewallName, $config['token_handler'], $userProviderId);

        $container
            ->setDefinition($authenticatorId, new ChildDefinition('security.authenticator.access_token'))
            ->replaceArgument(0, new Reference($tokenHandlerId))
            ->replaceArgument(1, new Reference($extractorId))
            ->replaceArgument(2, $userProviderId ? new Reference($userProviderId) : null)
            ->replaceArgument(3, $successHandler)
            ->replaceArgument(4, $failureHandler)
            ->replaceArgument(5, $config['realm'])
        ;