New - swap constructor.

Params extends the public profile with private parameters relating to automatic deposit and automatic cashing.

Payment handlers.

Profile - public swap profile public parameters for SWAP, serializable config struct passed in handshake.

Strategy encapsulates parameters relating to automatic deposit and automatic cashing.

Swap is the swarm accounting protocol instance * pairwise accounting and payments.

InPayment interface for the (delayed) incoming payment system with autocash.

OutPayment interface for the (delayed) outgoing payment system with auto-deposit.

Promise - 3rd party Provable Promise of Payment issued by outPayment serializable to send with Protocol.

Protocol interface for the peer protocol for testing or external alternative payment.