> ## Documentation Index
> Fetch the complete documentation index at: https://docs.restaking.cloud/llms.txt
> Use this file to discover all available pages before exploring further.

# rstModule sub-class

The following readme describes all the necessary functions and their parameters exposed by the `rstModule` class of the K2 SDK.

## getK2LendingContract function

Get address of the K2 lending contract.

### Using getK2LendingContract function

```javascript theme={null}
await sdk.rstModule.getK2LendingContract();
```

### Return Parameter

Returns address of K2 Lending contract

## getImplementationContract function

Address of the implementation contract that will be cloned (minimal proxy standard).

### Using getImplementationContract function

```javascript theme={null}
await sdk.rstModule.getImplementationContract();
```

### Return Parameter

Returns address of implementation contract

## isRST function

Check if a contract is RST or not.

### Input Parameters

contractAddress: Address of contract

### Using isRST function

```javascript theme={null}
await sdk.rstModule.isRST(contractAddress);
```

### Return Parameter

Returns `true` if valid RST contract, `false` otherwise.

## sbpToRST function

Get the RST token associated with an SBP(Slashable borrow position) index.

### Input Parameters

sbpIndex: SBP index in string

### Using sbpToRST function

```javascript theme={null}
await sdk.rstModule.sbpToRST(sbpIndex);
```

### Return Parameter

Returns RST token address.

## sbpOwnerToRST function

RST address deployed by the debtor (SBP owner).

### Input Parameters

debtorAddress: Address of debtor

### Using sbpOwnerToRST function

```javascript theme={null}
await sdk.rstModule.sbpOwnerToRST(debtorAddress);
```

### Return Parameter

Returns RST token address.

## sbpLabel function

Get the label configured by the SBP owner for their SBP index.

### Input Parameters

sbpIndex: SBP index in string

### Using sbpLabel function

```javascript theme={null}
await sdk.rstModule.sbpLabel(sbpIndex);
```

### Return Parameter

Returns SBP label in string.

## deployRST function

Deploy RST. RST can only be deployed at the time of creating the SBP.

### Input Parameters

debtorAddress: Address of debtor in string\
recipientAddress: Address of the account (in string) that will receive 90% of the tokens minted\
dao: DAO address in string that will hold back 10% to ensure that it maintains incentives for native delegation\
k2Incentives: Address in string\
percentageContributionToIncentives: string\
amount: Total supply that will be minted where the upper bound is the SBP principle in string\
symbol: The RST token symbol used when deploying the ERC20 cloneable token in string

### Using deployRST function

```javascript theme={null}
await sdk.rstModule.deployRST(
  debtorAddress,
  recipientAddress,
  dao,
  k2Incentives,
  percentageContributionToIncentives,
  amount,
  symbol
);
```

### Return Parameter

Address of RST deployed.

## updateRSTLabel function

Updated label of SBP index.

### Input Parameters

sbpIndex: SBP index in string\
label: new SBP label in string

### Using updateRSTLabel function

```javascript theme={null}
await sdk.rstModule.updateRSTLabel(sbpIndex, label);
```

### Return Parameter

Transaction hash.