$instanceRegister->registerStrategy(ExampleInterface::class, ConcreteClassA::class, 'A');
$instanceRegister->registerStrategy(ExampleInterface::class, ConcreteClassB::class, 'B');
$instanceRegister->registerStrategy(ExampleInterface::class, ConcreteClassA::class, 'A');
$instanceRegister->registerStrategy(ExampleInterface::class, ConcreteClassB::class, 'B');