Event.decodeLog

import { Event } from 'tevm'

const transferEvent = new Event({
  type: "event",
  name: "Transfer",
  inputs: [
    { type: "address", name: "from", indexed: true },
    { type: "address", name: "to", indexed: true },
    { type: "uint256", name: "value" }
  ]
})

// Get logs from blockchain
const logs = await provider.getLogs({
  address: tokenAddress,
  topics: [transferEvent.getSelector()]
})

// Decode each log
const transfers = logs.map(log =>
  transferEvent.decodeLog(log.data, log.topics)
)

console.log(transfers)
// [
//   { from: "0x...", to: "0x...", value: 1000n },
//   { from: "0x...", to: "0x...", value: 2000n }
// ]

import { Event } from 'tevm'

const swapEvent = new Event({
  type: "event",
  name: "Swap",
  inputs: [
    { type: "address", name: "sender", indexed: true },
    { type: "uint256", name: "amount0In" },
    { type: "uint256", name: "amount1In" },
    { type: "uint256", name: "amount0Out" },
    { type: "uint256", name: "amount1Out" },
    { type: "address", name: "to", indexed: true }
  ]
})

const decoded = swapEvent.decodeLog(log.data, log.topics)
console.log({
  sender: decoded.sender,
  amount0In: decoded.amount0In,
  amount1In: decoded.amount1In,
  amount0Out: decoded.amount0Out,
  amount1Out: decoded.amount1Out,
  to: decoded.to
})