code: def wnreld(a, op, b):
      
      assert isinstance(a, stypes.SpiceCell)
      assert b.dtype == 1
      assert isinstance(b, stypes.SpiceCell)
      assert a.dtype == 1
      assert isinstance(op, str)
      op = stypes.stringToCharP(op.encode(encoding='UTF-8'))
      return bool(libspice.wnreld_c(ctypes.byref(a), op, ctypes.byref(b)))
docs: Compare two double precision windows.
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/wnreld_c.html
  
      :param a: First window. 
      :type a: spiceypy.utils.support_types.SpiceCell
      :param op: Comparison operator. 
      :type op: str
      :param b: Second window. 
      :type b: spiceypy.utils.support_types.SpiceCell
      :return: The result of comparison: a (op) b.
      :rtype: bool