implement this function by filling in the boxes. thanks

"The method below is being added to the Linex List eins on the provided aid sheet. Asume the class also has a strand a len.. method define Fill in the home with the necessary code to complete the method according to it doestring. Do not add any de outside of the bus. You must not create new Norle objects det swap halves (self) - None ***More the nodes in the second half of this list to the front. Precondition: lencsell) - 2 >>> Ist - LinkedList(5, 10, 15, 20, 25, 30]) >>> print (ist) [5 - 10 - 15 -> 20 - 25 -> 30] >>> Ist.sap halves >>> print (st) (20 - 25 -> 30 -> 5 > 10 -> 15) >>> Ist linkedliste[5, 10]) >>> Ist. swap halves() >>> print(at) [10 -> 51 >>> 1st - Linkedlist(5, 10, 15, 20, 25]) >>> 1st.sap_halves >>> print (lat) (15 - 20 - 25 -> 5 -> 10) Compute the index of the node that will be the new first node mid index = len(self) // 2 # Set first and to refer to the bode at the end of the first half first and pos=0 while pos