src/product/BillingRegistry.php:38:16: UndefinedDocblockClass: Docblock-defined class, interface or enum named hiqdev\billing\registry\invoice\RepresentationInterface does not exist (see https://psalm.dev/200)

src/product/PriceTypeDefinition.php:18:13: UndefinedClass: Class, interface or enum named hiqdev\billing\registry\invoice\InvoiceRepresentationCollection does not exist (see https://psalm.dev/019)

src/product/PriceTypeDefinition.php:22:9: UndefinedClass: Class, interface or enum named hiqdev\billing\registry\product\PriceType does not exist (see https://psalm.dev/019)

src/product/PriceTypeDefinition.php:23:9: UndefinedClass: Class, interface or enum named hiqdev\billing\registry\product\GType does not exist (see https://psalm.dev/019)

src/product/PriceTypeDefinition.php:25:40: UndefinedClass: Class, interface or enum named hiqdev\billing\registry\invoice\InvoiceRepresentationCollection does not exist (see https://psalm.dev/019)

src/product/PriceTypeDefinition.php:55:47: UndefinedClass: Class, interface or enum named hiqdev\billing\registry\invoice\InvoiceRepresentationCollection does not exist (see https://psalm.dev/019)

src/product/PriceTypeDefinition.php:60:34: UndefinedClass: Class, interface or enum named hiqdev\billing\registry\measure\RcpTrafCollector does not exist (see https://psalm.dev/019)

src/product/PriceTypeDefinition.php:65:29: UndefinedClass: Class, interface or enum named hiqdev\billing\registry\product\PriceType does not exist (see https://psalm.dev/019)

src/product/PriceTypeDefinition.php:70:30: UndefinedClass: Class, interface or enum named hiqdev\billing\registry\product\GType does not exist (see https://psalm.dev/019)

src/product/PriceTypesCollection.php:8:39: MissingTemplateParam: hiqdev\php\billing\product\PriceTypesCollection has missing template params when extending IteratorAggregate, expecting 2 (see https://psalm.dev/182)