code: func (carMetadataProv *MetadataProvider) GetMetadataAsTarEntries() ([]byte, error) {
  	//This will convert metadata generated by car
  	//into tar entries identical to the tar entries generated by
  	//other platforms.
  	//
  	//Not implemented currently, users cannot specify metadata through CAR
  
  	buf := bytes.NewBuffer(nil)
  	tw := tar.NewWriter(buf)
  
  	if err := tw.Close(); err != nil {
  		return nil, err
  	}
  
  	return buf.Bytes(), nil
  }
docs: // GetMetadataAsTarEntries extracts metata data from ChaincodeDeploymentSpec