# [Ride v4 and v3] Common structures
⚠️ This is the documentation for the Standard library version 4 and 3. We recommend to use version 6. Go to version 6
| Name | Description | 
|---|---|
| Address | Account address | 
| Alias | Alias | 
| Asset | Token info | 
| AssetPair | Pair of tokens in an order | 
| AttachedPayment | Payment in an Invoke Script transaction | 
| BalanceDetails | Account balance in WAVES | 
| BlockInfo | Block header | 
| Invocation | Invoke Script transaction fields that are available to a callable function | 
| Order | Order | 
| Transfer | Transfer in Mass Transfer Transaction structure |