PeripheryPaymentsWithFee

Source: https://docs.uniswap.org/contracts/v3/reference/periphery/base/PeripheryPaymentsWithFee 

Functions

unwrapWETH9WithFee

  function unwrapWETH9WithFee(
        uint256 amountMinimum,
        address recipient,
        uint256 feeBips,
        address feeRecipient
  ) public

Unwraps the contract’s WETH9 balance and sends it to recipient as ETH, with a percentage between 0 (exclusive), and 1 (inclusive) going to feeRecipient

The amountMinimum parameter prevents malicious contracts from stealing WETH9 from users.

sweepTokenWithFee

  function sweepTokenWithFee(
        address token,
        uint256 amountMinimum,
        address recipient,
        uint256 feeBips,
        address feeRecipient
  ) public

Transfers the full amount of a token held by this contract to recipient, with a percentage between 0 (exclusive) and 1 (inclusive) going to feeRecipient

The amountMinimum parameter prevents malicious contracts from stealing the token from users