code: func GetChaincodePackageFromPath(ccname string, ccversion string, ccInstallPath string) ([]byte, error) {
  	path := fmt.Sprintf("%s/%s.%s", ccInstallPath, ccname, ccversion)
  	var ccbytes []byte
  	var err error
  	if ccbytes, err = ioutil.ReadFile(path); err != nil {
  		return nil, err
  	}
  	return ccbytes, nil
  }
docs: // GetChaincodePackage returns the chaincode package from the file system