startUsageAmount = $startUsageAmount; } public function getStartUsageAmount() { return $this->startUsageAmount; } /** * @param Money */ public function setUnitPrice(Money $unitPrice) { $this->unitPrice = $unitPrice; } /** * @return Money */ public function getUnitPrice() { return $this->unitPrice; } } // Adding a class alias for backwards compatibility with the previous class name. class_alias(TierRate::class, 'Google_Service_Cloudbilling_TierRate');