Can someone please explain this Code: step by step

1 class Node: 2 definit_(self, value): self.value = value self.nextNone 4 5 6 class LinkedList: 7 def init__(self): self, first = None 10 def prepend(self, value): new-node = Node(value) new-node . next- self. first self.first-new_node 12 14 15 def reverse(self 16 17 18 19 20 21 p None currentself.first while current is not None: ncurrent.next current.next = p p = Current current- n self.first p 23 24 25 def printItems(self): 26 27 28 29 30 31 my-list-LinkedList() 32 my_list.prependC"a") currentself.first while current is not None: print(current.value, end"" currentcurrent.next