Inherits: ReserveOracle
Reserve Oracle for PT-rsETH
constructor( uint8 _ilkIndex, address[] memory _feeds, uint8 _quorum, uint256 _maxChange ) ReserveOracle(_ilkIndex, _feeds, _quorum, _maxChange);
1 PT will be worth 1 ETH at maturity. Since we want to value the PT at maturity, we need to convert 1 ETH of value into rsETH terms.
function _getProtocolExchangeRate() internal view override returns (uint256);