PYTHON - please finish the methods below that are apart of a linkedlist class#return the data value at index(position) in the list. values remain unchangeddef __getpos__(self, position): #do not change, checks for valid index if self.size == 0: raise IndexError elif position is None: return self.pop(self.size - 1) elif type(position) != int: raise TypeError elif position < 0 or position >= self.size: raise IndexError #replace the data value at requested position(index). return nothingdef __setpos__(self,position,value): #do not change, checks for valid index if self.size == 0: raise IndexError elif position is None: return self.pop(self.size - 1) elif type(position) != int: raise TypeError elif position < 0 or position >= self.size: raise IndexError
