      global _FS_BACKEND  # pylint:disable=global-statement
      _FS_BACKEND = backend.lower()
  
  
  def get_tf_version():
      """ Obtain the major.minor version of currently installed Tensorflow.
  
      Returns
      -------
      float
 
</s> remove     _FS_BACKEND = backend.lower()
 </s> add     backend = cast(ValidBackends, backend.lower())
    _FS_BACKEND = backend </s> remove def get_backend():
 </s> add def get_backend() -> ValidBackends: </s> remove     def _get_config_file(cls):
 </s> add     def _get_config_file(cls) -> str: </s> remove _FS_BACKEND = _Backend().backend
 </s> add _FS_BACKEND: ValidBackends = _Backend().backend </s> remove def convert_to_secs(*args):
 </s> add def get_dpi() -> float:
    """ Obtain the DPI of the running screen.

    Returns
    -------
    int
        The obtain dots per inch of the running monitor
    """
    root = tk.Tk()
    dpi = root.winfo_fpixels('1i')
    return float(dpi)


def convert_to_secs(*args: int) -> int:
def get_tf_version() -> float:
      global _FS_BACKEND  # pylint:disable=global-statement
      _FS_BACKEND = backend.lower()
  
  
def get_tf_version() -> float:
      """ Obtain the major.minor version of currently installed Tensorflow.
  
      Returns
      -------
      float
keep keep keep keep replace keep keep keep keep keep
 lib.Utils - add DPI detector 
lib/utils.py