class_docstr: See module docs.
docstr: Insert a StringIOTree (and all of its contents) at this location.
  Further writing to self appears after what is inserted.
code: def insert(self, iotree):
      """
      Insert a StringIOTree (and all of its contents) at this location.
      Further writing to self appears after what is inserted.
      """
      self.commit()
      self.prepended_children.append(iotree)
  
file_path: catboost/contrib/tools/cython/Cython/StringIOTree.py
imports: from __future__ import absolute_import
label_desc: Use image node_id 5 for calling the StringIOTree obj's underlying member method code with example usage: obj.insert(iotree) without return types