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