chmentSchema::IDENTIFIER ]
		);
		$this->schemas[ ProductAttributeSchema::IDENTIFIER ] = new ProductAttributeSchema( $this->extend );
		$this->schemas[ ProductCategorySchema::IDENTIFIER ]  = new ProductCategorySchema(
			$this->extend,
			$this->schemas[ ImageAttachmentSchema::IDENTIFIER ]
		);
		$this->schemas[ ProductCollectionDataSchema::IDENTIFIER ] = new ProductCollectionDataSchema( $this->extend );
		$this->schemas[ ProductReviewSchema::IDENTIFIER ]         = new ProductReviewSchema(
			$this->extend,
			$this->schemas[ ImageAttachmentSchema::IDENTIFIER ]
		);
	}
}