parameters: (self, data)
docstring: initializing single node with data
docstring_summary: initializing single node with data
docstring_tokens: initializing single node with data
function: def __init__(self, data):
          """ initializing single node with data """
          self.data = data
          self.next = None
function_tokens: def __init__ ( self , data ) : self . data = data self . next = None