code: def biggest_entry(self):
      return self.entries[-1]
  
imports: import abc
  import bisect
  import math
  from typing import Optional
  from .const import ENDIAN, NODE_TYPE_BYTES, USED_PAGE_LENGTH_BYTES, PAGE_REFERENCE_BYTES, TreeConf
  from .entry import Entry, Record, Reference, OpaqueData
label_desc: Use image node_id 10 for calling the Node obj's underlying member method code with example usage: obj.biggest_entry() and returns: self