> For the complete documentation index, see [llms.txt](https://docs.verified.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verified.network/reference/verified-sdk/staking-to-invest/liquidity-functions.md).

# Liquidity functions

###  **tokens**

`buy(_token, _amount)`

| Function parameter | Description                                   |
| ------------------ | --------------------------------------------- |
| \_token            | address of digital asset offered as liquidity |
| \_amount           | amount of digital asset offered as liquidity  |

### **Check balance of Verified liquidity tokens** 

`balance(_investor)`

<table data-header-hidden><thead><tr><th width="323.81975071907954">Function parameter</th><th>Description</th></tr></thead><tbody><tr><td>Function parameter</td><td>Description</td></tr><tr><td>_investor</td><td>wallet address of liquidity provider for which balance of Verified liquidity tokens is returned</td></tr></tbody></table>