anchor.diff:      nbconvert
       nbformat
       pproxy
  +    qiskit-aer
       vcrpy
     ] ++ lib.optionals (!withVisualization) visualizationPackages;
   
  
positive.code:     owner = "Qiskit";
      repo = pname;
      rev = version;
      sha256 = "0b5mnq8f5844idnsmp84lpkvlpszfwwi998yvggcgaayw1dbk53h";
    };
  
    propagatedBuildInputs = [
  
negative.code: , nbconvert
  , nbformat
  , pproxy
  , qiskit-aer
  , vcrpy
  }:
  
  