web3InterfacesFeeHistoryBaseOn this pageFeeHistoryBase <NumberType>Index PropertiesbaseFeePerGasgasUsedRatiooldestBlockrewardProperties readonlybaseFeePerGasbaseFeePerGas: NumberTypereadonlygasUsedRatiogasUsedRatio: NumberType[]readonlyoldestBlockoldestBlock: NumberTypereadonlyrewardreward: NumberType[][]