setProvidedTypes example

$processors[$prefix] = new Reference($id);
                $types[$prefix] = self::validateProvidedTypes($type, $class);
            }
        }

        if ($bag instanceof EnvPlaceholderParameterBag) {
            foreach (EnvVarProcessor::getProvidedTypes() as $prefix => $type) {
                if (!isset($types[$prefix])) {
                    $types[$prefix] = self::validateProvidedTypes($type, EnvVarProcessor::class);
                }
            }
            $bag->setProvidedTypes($types);
        }

        if ($processors) {
            $container->setAlias('container.env_var_processors_locator', (string) ServiceLocatorTagPass::register($container, $processors))
                ->setPublic(true)
            ;
        }
    }

    private static function validateProvidedTypes(string $types, string $class): array
    {
        

$processors[$prefix] = new Reference($id);
                $types[$prefix] = self::validateProvidedTypes($type, $class);
            }
        }

        if ($bag instanceof EnvPlaceholderParameterBag) {
            foreach (EnvVarProcessor::getProvidedTypes() as $prefix => $type) {
                if (!isset($types[$prefix])) {
                    $types[$prefix] = self::validateProvidedTypes($type, EnvVarProcessor::class);
                }
            }
            $bag->setProvidedTypes($types);
        }

        if ($processors) {
            $container->setAlias('container.env_var_processors_locator', (string) ServiceLocatorTagPass::register($container, $processors))
                ->setPublic(true)
            ;
        }
    }

    private static function validateProvidedTypes(string $types, string $class): array
    {