> For the complete documentation index, see [llms.txt](https://onestore-dev.gitbook.io/dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://onestore-dev.gitbook.io/dev/chi/tools/billing/v21/references/annotations.md).

# Annotations

- [PurchaseClient.ConnectionState](https://onestore-dev.gitbook.io/dev/chi/tools/billing/v21/references/annotations/purchaseclient.connectionstate.md)
- [PurchaseClient.FeatureType](https://onestore-dev.gitbook.io/dev/chi/tools/billing/v21/references/annotations/purchaseclient.featuretype.md)
- [PurchaseClient.ProductType](https://onestore-dev.gitbook.io/dev/chi/tools/billing/v21/references/annotations/purchaseclient.producttype.md)
- [PurchaseClient.RecurringAction](https://onestore-dev.gitbook.io/dev/chi/tools/billing/v21/references/annotations/purchaseclient.recurringaction.md)
- [PurchaseClient.ResponseCode](https://onestore-dev.gitbook.io/dev/chi/tools/billing/v21/references/annotations/purchaseclient.responsecode.md)
- [PurchaseData.AcknowledgeState](https://onestore-dev.gitbook.io/dev/chi/tools/billing/v21/references/annotations/purchasedata.acknowledgestate.md)
- [PurchaseData.PurchaseState](https://onestore-dev.gitbook.io/dev/chi/tools/billing/v21/references/annotations/purchasedata.purchasestate.md)
- [PurchaseData.RecurringState](https://onestore-dev.gitbook.io/dev/chi/tools/billing/v21/references/annotations/purchasedata.recurringstate.md)
- [PurchaseFlowParams.ProrationMode](https://onestore-dev.gitbook.io/dev/chi/tools/billing/v21/references/annotations/purchaseflowparams.prorationmode.md)