code: func (b *backendInstance) PSCSettle(opts *bind.TransactOpts,
  	agent common.Address, blockNumber uint32,
  	hash [common.HashLength]byte) (*types.Transaction, error) {
  	ctx2, cancel := b.addTimeout(opts.Context)
  	defer cancel()
  
  	opts.Context = ctx2
  
  	tx, err := b.psc.Settle(opts, agent, blockNumber, hash)
  	if err != nil {
  		err = fmt.Errorf("failed to settle"+
  			" PSC channel: %s", err)
  	}
  	return tx, err
  }
docs: // PSCSettle calls settle method of Privatix service contract.