Event.encodeTopics

import { Abi } from '@tevm/voltaire/Abi';
import { Hex } from '@tevm/voltaire/Hex';

const Transfer = {
  type: 'event',
  name: 'Transfer',
  inputs: [
    { type: 'address', name: 'from', indexed: true },
    { type: 'address', name: 'to', indexed: true },
    { type: 'uint256', name: 'value' }
  ]
} as const;

const topics = Abi.Event.encodeTopics(Transfer, {
  from: '0x742d35Cc6634C0532925a3b844Bc9e7595f51e3e',
  to: '0x5B38Da6a701c568545dCfcB03FcB875f56beddC4'
});

const topicHex = topics.map((t) => (t ? Hex.fromBytes(t) : null));

const topics = Abi.Event.encodeTopics(Transfer, {
  from: null,
  to: '0x5B38Da6a701c568545dCfcB03FcB875f56beddC4'
});

const topics = Abi.Event.encodeTopics(Transfer, {
  from: null,
  to: '0x5B38Da6a701c568545dCfcB03FcB875f56beddC4'
});

const filterTopics = topics.map((t) => (t ? Hex.fromBytes(t) : null));

const logs = await provider.getLogs({
  address: tokenAddress,
  topics: filterTopics
});