File: vendor/doctrine/doctrine-cache-bundle/Tests/DependencyInjection/Fixtures/config/yml/custom_providers.yml

services:
    my_custom_provider_service:
        class: Doctrine\Bundle\DoctrineCacheBundle\Tests\DependencyInjection\Fixtures\Cache\MyCustomType

doctrine_cache:
    custom_providers:
        my_custom_type:
            prototype:  "my_custom_provider_service"
            definition_class: Doctrine\Bundle\DoctrineCacheBundle\Tests\DependencyInjection\Fixtures\Definition\MyCustomTypeDefinition

        my_custom_type2:
            prototype:  "my_custom_provider_service"

    providers:
        my_custom_type_provider:
            my_custom_type:
                config_foo: "foo"
                config_bar: "bar"

        my_custom_type_provider2:
            my_custom_type2:
                config_foobar: "foobar"