public function sequenceScenarios()
{
return ['New sequence in collection "products"' => ['sequenceName' => 'products', 'currentValue' => 0, 'expectation' => 1], 'Existing sequence in collection "unicorns"' => ['sequenceName' => 'unicorns', 'currentValue' => 7, 'expectation' => 8], 'Existing sequence in collection "unicorns"' => ['sequenceName' => 'unicorns', 'currentValue' => 3, 'expectation' => 4]];
}