> ## 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.

# nodeOperatorInclusionList sub-class

The following readme describes all the functions and their parameters exposed by the `nodeOperatorInclusionList` class of the K2 SDK. This sub-class contains all the important functions from the K2 Node Operator Inclusion List contract of the K2 Lending protocol.

## isNewBLSKeyPermitted function

Compare the current counter with the global counter to see if the given bls key is permitted.

### Input Parameters

blsPublicKey: BLS public key of the validator

### Using isNewBLSKeyPermitted function

```javascript theme={null}
await sdk.nodeOperatorInclusionList.isNewBLSKeyPermitted(blsPublicKey);
```

### Return Parameter

Transaction details if the transaction was successful.

## onBLSKeyRegisteredToK2 function

Notify the inclusion list that a key was added so it can increase its global counter.

### Input Parameters

blsPublicKey: BLS public key of the validator

### Using onBLSKeyRegisteredToK2 function

```javascript theme={null}
await sdk.nodeOperatorInclusionList.onBLSKeyRegisteredToK2(blsPublicKey);
```

### Return Parameter

Transaction details if the transaction was successful.

## onBLSKeyUnregisteredToK2 function

Notify the inclusion list that a key was removed so it can decrease its global counter.

### Input Parameters

blsPublicKey: BLS public key of the validator

### Using onBLSKeyUnregisteredToK2 function

```javascript theme={null}
await sdk.nodeOperatorInclusionList.onBLSKeyUnregisteredToK2(blsPublicKey);
```

### Return Parameter

Transaction details if the transaction was successful.