anchor.diff:  
       pushd dist
   
  +    orig_name="$(echo ./*.whl)"
       wheel unpack --dest unpacked ./*.whl
       rm ./*.whl
       (
  
positive.code:   };
  
    meta = with lib; {
      broken = stdenv.isDarwin;
      description = "Computation using data flow graphs for scalable machine learning";
      homepage = "http://tensorflow.org";
      sourceProvenance = with sourceTypes; [ binaryNativeCode ];
  
negative.code:         -e "/Requires-Dist: tensorflow-io-gcs-filesystem/d"
      )
      wheel pack ./unpacked/tensorflow*
      mv *.whl $orig_name # avoid changes to the _os_arch.whl suffix
  
      popd
    '';
  