docstr: Remove and return the smallest entry.
docstr_tok: ["Remove","and","return","the","smallest","entry","."]
code: def pop_smallest(self) -> Entry:
      """Remove and return the smallest entry."""
      return self.entries.pop(0)
  
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 12 for calling the Node obj's underlying member method code with example usage: obj.pop_smallest() and returns: self