Retrieves the access status of your account to the EC2 serial console of all instances. By default, access to the EC2 serial console is disabled for your account. For more information, see <a href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/configure-access-to-serial-console.html#serial-console-account-access">Manage account access to the EC2 serial console</a> in the <i>Amazon EC2 User Guide</i>.