> ## 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.

# partitionedLinearInterestRateModel sub-class

The following readme describes all the functions and their parameters exposed by the `partitionedLinearInterestRateModel` class of the K2 SDK. This sub-class contains all the important functions from the K2 Partitioned Linear Interest Rate Model contract of the K2 Lending protocol.

## getUtilizationRatio function

Get the max utilisation percentage of the pool at 100% utilisation.

### Input Parameters

assumedLiquidity: Total liquidity in the pool, including available and borrowed funds\
borrowedLiquidity: Liquidity borrowed from the pool\
borrowAmount: Borrow amount

### Using getUtilizationRatio function

```javascript theme={null}
await sdk.partitionedLinearInterestRateModel.getUtilizationRatio(assumedLiquidity, borrowedLiquidity, borrowAmount);
```

### Return Parameters

Returns the max utilization percentage.

## maxSlashableAmountPerLivenessUpper function

Upper bound for the ETH slashing amount that can take place for a given liveness event.

### Input Parameters

assumedLiquidity: Total liquidity in the pool, including available and borrowed funds\
borrowedLiquidity: Liquidity borrowed from the pool\
borrowAmount: Borrow amount

### Using maxSlashableAmountPerLivenessUpper function

```javascript theme={null}
await sdk.partitionedLinearInterestRateModel.maxSlashableAmountPerLivenessUpper(assumedLiquidity, borrowedLiquidity, borrowAmount);
```

### Return Parameters

Returns the max ETH slashing amount possible for a given liveness event.

## maxSlashableAmountPerCorruptionUpper function

Upper bound for the ETH slashing amount that can take place for a given corruption event.

### Input Parameters

assumedLiquidity: Total liquidity in the pool, including available and borrowed funds\
borrowedLiquidity: Liquidity borrowed from the pool\
borrowAmount: Borrow amount

### Using maxSlashableAmountPerCorruptionUpper function

```javascript theme={null}
await sdk.partitionedLinearInterestRateModel.maxSlashableAmountPerCorruptionUpper(assumedLiquidity, borrowedLiquidity, borrowAmount);
```

### Return Parameters

Returns the max ETH slashing amount possible for a given corruption event.

## getInterestRate function

Get the current interest rate based on assumed (total) and available liquidity.

### Input Parameters

assumedLiquidity: Total liquidity in the pool, including available and borrowed funds\
borrowedLiquidity: Liquidity borrowed from the pool\
borrowAmount: Borrow amount\
maxSlashableAmountPerLiveness: Maximum slashable amount per liveness\
maxSlashableAmountPerCorruption: Maximum slashable amount per corruption

### Using getInterestRate function

```javascript theme={null}
await sdk.partitionedLinearInterestRateModel.getInterestRate(assumedLiquidity, borrowedLiquidity, borrowAmount, maxSlashableAmountPerLiveness, maxSlashableAmountPerCorruption);
```

### Return Parameters

Returns the current interest rate in RAY format.

## getMaxBorrowableAmount function

Get the expected max borrow amount for SBP using interest.

### Input Parameters

interestAmount: The interest amount\
currentBorrowAmount: Curent debt principal\
maxSlashableAmountPerLiveness: Maximum slashable amount per liveness\
maxSlashableAmountPerCorruption: Maximum slashable amount per corruption\
duration: Borrow duration

### Using getMaxBorrowableAmount function

```javascript theme={null}
await sdk.partitionedLinearInterestRateModel.getMaxBorrowableAmount(interestAmount, currentBorrowAmount, maxSlashableAmountPerLiveness, maxSlashableAmountPerCorruption, duration);
```

### Return Parameters

Returns the expected max borrow amount using interest.

## getExpectedInterest function

Get the expected interest accrued over a duration, assuming interest rate doesn't change after the initial borrow.

### Input Parameters

newBorrowAmount: The debt principal to compute interest for\
currentBorrowAmount: Curent debt principal\
maxSlashableAmountPerLiveness: Maximum slashable amount per liveness\
maxSlashableAmountPerCorruption: Maximum slashable amount per corruption\
duration: Borrow duration

### Using getExpectedInterest function

```javascript theme={null}
await sdk.partitionedLinearInterestRateModel.getExpectedInterest(newBorrowAmount, currentBorrowAmount, maxSlashableAmountPerLiveness, maxSlashableAmountPerCorruption, duration);
```

### Return Parameters

Returns the expected interest accrued over a duration.

## getBorrowableAmountBounds function

Get the upper and lower boundaries on the given borrow amount.

### Input Parameters

currentBorrowAmount: Curent debt principal\
maxSlashableAmountPerLiveness: Maximum slashable amount per liveness\
maxSlashableAmountPerCorruption: Maximum slashable amount per corruption

### Using getBorrowableAmountBounds function

```javascript theme={null}
await sdk.partitionedLinearInterestRateModel.getBorrowableAmountBounds(currentBorrowAmount, maxSlashableAmountPerLiveness, maxSlashableAmountPerCorruption);
```

### Return Parameters

Returns the lower and upper bounds on new borrow amount.