code: func NewMultisigAddress(digests Trytes, spongeFunc ...SpongeFunction) (*MultisigAddress, error) {
  	h := GetSpongeFunc(spongeFunc, kerl.NewKerl)
  
  	m := &MultisigAddress{h: h}
  	if len(digests) != 0 {
  		if err := m.Absorb(digests); err != nil {
  			return nil, err
  		}
  	}
  	return m, nil
  }
docs: // NewMultisigAddress creates a new multisig address object.