utxo

type Spender interface {
	// Spend the provided amount while deducting the provided fee.
	// Arguments:
	// - [utxos] contains assets ID and amount to be spend for each assestID
	// - [kc] are the owners of the funds
	// - [amounts] is the amount of funds that are available to be spent for each assetID
	// Returns:
	// - [amountsSpent] the amount of funds that are spent
	// - [inputs] the inputs that should be consumed to fund the outputs
	// - [signers] the proof of ownership of the funds being moved
	Spend(
		utxos []*avax.UTXO,
		kc *secp256k1fx.Keychain,
		amounts map[ids.ID]uint64,
	) (
		map[ids.ID]uint64,
		[]*avax.TransferableInput,
		[][]*secp256k1.PrivateKey,
		error,
	)

	SpendNFT(
		utxos []*avax.UTXO,
		kc *secp256k1fx.Keychain,
		assetID ids.ID,
		groupID uint32,
		to ids.ShortID,
	) (
		[]*txs.Operation,
		[][]*secp256k1.PrivateKey,
		error,
	)

	SpendAll(
		utxos []*avax.UTXO,
		kc *secp256k1fx.Keychain,
	) (
		map[ids.ID]uint64,
		[]*avax.TransferableInput,
		[][]*secp256k1.PrivateKey,
		error,
	)

	Mint(
		utxos []*avax.UTXO,
		kc *secp256k1fx.Keychain,
		amounts map[ids.ID]uint64,
		to ids.ShortID,
	) (
		[]*txs.Operation,
		[][]*secp256k1.PrivateKey,
		error,
	)

	MintNFT(
		utxos []*avax.UTXO,
		kc *secp256k1fx.Keychain,
		assetID ids.ID,
		payload []byte,
		to ids.ShortID,
	) (
		[]*txs.Operation,
		[][]*secp256k1.PrivateKey,
		error,
	)
}