code: def as_slice(slice_):
      
      if isinstance(slice_, (Integral, numpy.integer, type(None))):
          return slice(0, None, 1)
  
      if isinstance(slice_, (slice, numpy.ndarray)):
          return slice_
  
      if isinstance(slice_, (list, tuple)):
          return tuple(map(as_slice, slice_))
  
      raise TypeError("Cannot format {!r} as slice".format(slice_))
docs: Convert an object to a slice, if possible