def errors
      reference_factories.inject(factory.errors) do |memo, f|
        Validation::ErrorCollection.combine(memo, f.errors)
      end
    end
def errors
      reference_factories.inject(factory.errors) do |memo, f|
        Validation::ErrorCollection.combine(memo, f.errors)
      end
    end
Any validation errors that are present on the OpenAPI document

 @return [Validation::ErrorCollection]