Acl\Adapter\Memory::addRole

public addRole (RoleInterface | string $role, [array | string $accessInherits])

Adds a role to the ACL list. Second parameter allows inheriting access data from other existing role Example:

$acl->addRole(new Phalcon\Acl\Role('administrator'), 'consultant');
    $acl->addRole('administrator', 'consultant');