File: vendor/symfony/dependency-injection/Tests/Fixtures/yaml/legacy_invalid_definition.yml

services:
    # This definition is valid and should not raise any deprecation notice
    foo:
        class: stdClass
        arguments: [ 'foo', 'bar' ]

    # This definition is invalid and must raise a deprecation notice
    bar:
        class: stdClass
        private: true        # the "private" keyword is invalid