const signer = LocalSigner(...) // it would be hard and confusing to remove that step imho

const txHash = await new EasyTonPoolStaker({..})
  .buildStakeTx({ amount: '1', validatorAddressPair })
  .sign({ signer, signerAddress })
  .broadcast()
  .exec() // this is to unwrap whole chain
  
console.log('Transaction Hash:', txHash)

const staker = new TonPoolStaker({..})
const unsigedTx = staker.buildStakeTx({ amount: '1', validatorAddressPair })
const signedTx = staker.sign({ signer, signerAddress, tx: unsignedTx })
const hash = staker.broadcast(signedTx)

const txHash = await new TonPoolStaker({..})
  .chain() // <--- new method that creates fluent staker of self
  .buildStakeTx({ amount: '1', validatorAddressPair })
  .sign({ signer, signerAddress })
  .broadcast()
  .exec() // this is to unwrap whole chain