> For the complete documentation index, see [llms.txt](https://cetus-1.gitbook.io/cetus-developer-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cetus-1.gitbook.io/cetus-developer-docs/developer/via-sdk-v2/migrate-from-v1-to-v2/helpers.md).

# Helpers

🔄 Method Migration

Several commonly used utility methods have been moved from **@cetusprotocol/sui-clmm-sdk** to **@cetusprotocol/common-sdk**. Below are some typical import and usage changes:<br>

> 🚫 `TransactionUtil` is deprecated and replaced CoinAssist

```diff
- import type { CoinAssist, ClmmPoolUtil, TickMath，TickUtil  } from '@cetusprotocol/sui-clmm-sdk'
+ import type { CoinAssist, ClmmPoolUtil, TickMath，TickUtil  } from '@cetusprotocol/common-sdk'

- TransactionUtil.buildCoinForAmount()
+ CoinAssist.buildCoinForAmount()

- TransactionUtil.buildCoinWithBalance()
+ CoinAssist.buildCoinWithBalance()
```