BlockBody

import * as BlockBody from '@voltaire/primitives/BlockBody'

const body = BlockBody.from({
  transactions: [tx1, tx2, tx3],
  ommers: [],
  withdrawals: [w1, w2],
})

type BlockBodyType = {
  readonly transactions: readonly Transaction[]
  readonly ommers: readonly UncleType[]
  readonly withdrawals?: readonly WithdrawalType[]
}

import * as BlockBody from '@voltaire/primitives/BlockBody'

// Basic block with just transactions
const body = BlockBody.from({
  transactions: [legacyTx, eip1559Tx, eip4844Tx],
  ommers: [],
})

// Post-Shanghai block with withdrawals
const shanghaiBody = BlockBody.from({
  transactions: [tx1, tx2],
  ommers: [],
  withdrawals: [
    { index: 0n, validatorIndex: 123n, address: "0x...", amount: 1000000000n },
    { index: 1n, validatorIndex: 456n, address: "0x...", amount: 2000000000n },
  ],
})

const body = BlockBody.from({
  transactions: [
    legacyTx,      // Type 0
    eip2930Tx,     // Type 1
    eip1559Tx,     // Type 2
    eip4844Tx,     // Type 3
  ],
  ommers: [],
})

// Pre-merge block with ommers
const premergebody = BlockBody.from({
  transactions: [],
  ommers: [uncleHeader1, uncleHeader2],
})

// Post-merge block (no ommers)
const postmergeBody = BlockBody.from({
  transactions: [],
  ommers: [],
})

const withdrawal = {
  index: 12345n,           // Global withdrawal index
  validatorIndex: 100n,    // Validator being withdrawn from
  address: "0xabc...",     // Recipient address
  amount: 32000000000n,    // Amount in Gwei (not Wei!)
}

const body = BlockBody.from({
  transactions: [],
  ommers: [],
  withdrawals: [withdrawal],
})