Withdrawal (unwrap) event signature and topic0

import { createPublicClient, http, parseAbiItem } from "viem"
import { mainnet } from "viem/chains"

const client = createPublicClient({ chain: mainnet, transport: http() })

const logs = await client.getLogs({
  address: "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
  event: parseAbiItem("event Withdrawal(address indexed src, uint256 wad)"),
  fromBlock: "latest",
})

for (const log of logs) console.log(log.args) // { src, wad }

import { Interface, JsonRpcProvider } from "ethers"

const provider = new JsonRpcProvider(process.env.RPC_URL)
const iface = new Interface(["event Withdrawal(address indexed src, uint256 wad)"])

const logs = await provider.getLogs({
  address: "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
  topics: [iface.getEvent("Withdrawal")!.topicHash],
})

for (const log of logs) console.log(iface.parseLog(log)?.args)

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "eth_getLogs",
  "params": [
    {
      "address": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
      "topics": [
        "0x7fcf532c15f0a6db0bd6d0e038bea71d30d808c7d98cb3bf7268a95bf5081b65"
      ],
      "fromBlock": "latest"
    }
  ]
}

event Withdrawal(address indexed src, uint256 wad);

// inside a function:
emit Withdrawal(src, wad);