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Oracle component that fetches the price of an asset
There are five types of medianizers that can be used in GEB:
DSValue- used when deploying the system on a localchain or a testnet in order to easily manipulate the price feed of a collateral type / system coin.
GovernanceLedPriceFeedMedianizer- offers more security by requiring a
quorumof oracles to submit their prices which are then medianized on-chain.
ChainlinkPriceFeedMedianizer- relies on a Chainlink aggregator in order to fetch and push price feeds in to the system.
UniswapConsecutiveSlotsPriceFeedMedianizer- computes the average price for an asset in the last
mseconds and can be connected to a
ChainlinkPriceFeedmedianizer in order to translate the asset's price (e.g use the WETH/WBTC pool to get the price of WBTC in terms of WETH) in a different currency (e.g translate the WBTC/WETH Uniswap pool price into USD).