class_docstr: The first node at the top of the tree.
class_docstr_tok: ["The","first","node","at","the","top","of","the","tree","."]
code: def convert_to_internal(self):
      internal = InternalNode(self._tree_conf, page=self.page)
      internal.entries = self.entries
      return internal
  
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 2 for calling the RootNode obj's underlying member method code with example usage: obj.convert_to_internal() and returns: internal