class_docstr: Support structure for PVector that implements structural sharing for vectors using a trie.
class_docstr_tok: ["Support","structure","for","PVector","that","implements","structural","sharing","for","vectors","using","a","trie","."]
code: def _mutating_fill_tail(self, offset, sequence):
      max_delta_len = BRANCH_FACTOR - len(self._tail)
      delta = sequence[offset : offset + max_delta_len]
      self._tail.extend(delta)
      delta_len = len(delta)
      self._count += delta_len
      return offset + delta_len
  
imports: from abc import abstractmethod, ABCMeta
  from collections.abc import Sequence, Hashable
  from numbers import Integral
  import operator
  from typing import TypeVar, Generic
  from pyrsistent._transformations import transform
label_desc: Use image node_id 30 for calling the PythonPVector obj's underlying member method code with example usage: obj._mutating_fill_tail(offset, sequence) and returns: unknown