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# ReferrerLib

Implements referral program logic, enabling the protocol to reward stakers for inviting others. It tracks referral relationships, determines the eligibility of rewards.

## Constants

### REFERRAL\_MULTIPLIER

Contain the fixed referral bonus. 1%.

```solidity
uint256 constant PRECISION = 10 ** 25;
uint256 constant REFERRAL_MULTIPLIER = (PRECISION * 101) / 100; // 1% referral bonu
```

## Read functions

### getReferralMultiplier

The function to calculate the referral multiplier. Returns `REFERRAL_MULTIPLIER` for valid addresses.

```solidity
 function getReferralMultiplier(
   address referrer_
) external pure returns (uint256) 
```

| Name        | Description           |
| ----------- | --------------------- |
| `referrer_` | The referrer address. |


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