How can I create staking contract?

🧑‍🏫Developer
1 
// 2. Define the user selected parameters of the staking contract:
//    - `stakerPk: Buffer`: The public key without the coordinate of the
//       staker.
//    - `finalityProviders: Buffer[]`: A list of public keys without the
//       coordinate corresponding to the finality providers. Currently,
//       a delegation to only a single finality provider is allowed,
//       so the list should contain only a single item.
//    - `stakingDuration: number`: The staking period in BTC blocks.
//    - `stakingAmount: number`: The amount to be staked in satoshis.
//    - `unbondingTime: number`: The unbonding time. Should be `>=` the
//      `minUnbondingTime`.

const stakerPk: Buffer = btcWallet.publicKeyNoCoord();

How can I get the btcWallet in here?

2

You can use the bitcoinjs lib library to create a wallet