class_docstr: A variable explorer.
class_docstr_tok: ["A","variable","explorer","."]
docstr: Initialize the explorer.
docstr_tok: ["Initialize","the","explorer","."]
code: def __init__(self):
      """Initialize the explorer."""
      self.suspended_frame_manager = SuspendedFramesManager()
      self.py_db = _DummyPyDB()
      self.tracker = _FramesTracker(
          self.suspended_frame_manager, self.py_db
      )
      self.frame = None
  
imports: import os
  import re
  import sys
  import typing
  from pathlib import Path
  import zmq
  from IPython.core.getipython import get_ipython
  from IPython.core.inputtransformer2 import leading_empty_lines
  from tornado.locks import Event
  from tornado.queues import Queue
  from zmq.utils import jsonapi
  from .compiler import get_file_name, get_tmp_directory, get_tmp_hash_seed
label_desc: Use image node_id 1 to create a new VariableExplorer object  with example: obj = VariableExplorer()