code: func UnmarshalChaincodeDeploymentSpec(cdsBytes []byte) (*peer.ChaincodeDeploymentSpec, error) {
  	cds := &peer.ChaincodeDeploymentSpec{}
  	err := proto.Unmarshal(cdsBytes, cds)
  	if err != nil {
  		return nil, errors.Wrap(err, "error unmarshaling ChaincodeDeploymentSpec")
  	}
  
  	return cds, nil
  }
docs: // UnmarshalChaincodeDeploymentSpec unmarshals a ChaincodeDeploymentSpec from
  // the provided bytes