                           self._env.backend, _BACKEND_SPECIFIC_CONDA)
              return
          for pkg in to_add:
              pkg, channel = _CONDA_MAPPING.get(pkg, (pkg, ""))
              if pkg in ("cudatoolkit", "cudnn"):  # TODO Handle multiple cuda/cudnn requirements
                  idx = 0 if pkg == "cudatoolkit" else 1
                  pkg = f"{pkg}{list(_TENSORFLOW_REQUIREMENTS.values())[0][idx]}"
              if pkg.startswith("cudnn"):
 
</s> remove _BACKEND_SPECIFIC_CONDA: dict[backend_type, list[str]] = {"nvidia": ["cudatoolkit", "cudnn"],
                                                          "apple_silicon": ["libblas"]}
 </s> add # TODO zlib-wapi is required on some Windows installs where cuDNN complains:
# Could not locate zlibwapi.dll. Please make sure it is in your library path!
# This only seems to occur on Anaconda cuDNN not conda-forge
_BACKEND_SPECIFIC_CONDA: dict[backend_type, list[str]] = {
    "nvidia": ["cudatoolkit", "cudnn", "zlib-wapi"],
    "apple_silicon": ["libblas"]} </s> remove     "libblas": ("libblas", "conda-forge")}
 </s> add     "libblas": ("libblas", "conda-forge"),
    "zlib-wapi": ("zlib-wapi", "conda-forge")}
            if pkg == "zlib-wapi" and self._env.os_version[0].lower() != "windows":
                # TODO move this front and center
                continue
                           self._env.backend, _BACKEND_SPECIFIC_CONDA)
              return
          for pkg in to_add:
              pkg, channel = _CONDA_MAPPING.get(pkg, (pkg, ""))
            if pkg == "zlib-wapi" and self._env.os_version[0].lower() != "windows":
                # TODO move this front and center
                continue
              if pkg in ("cudatoolkit", "cudnn"):  # TODO Handle multiple cuda/cudnn requirements
                  idx = 0 if pkg == "cudatoolkit" else 1
                  pkg = f"{pkg}{list(_TENSORFLOW_REQUIREMENTS.values())[0][idx]}"
              if pkg.startswith("cudnn"):
keep keep keep add keep keep keep keep
 bugfix: setup.py pull in zlib-wapi on nvidia windows 
setup.py