class_docstr: Event for tool manipulation (add/remove)
class_docstr_tok: ["Event","for","tool","manipulation","(","add\/remove",")"]
code: def __init__(self, name, sender, tool, data=None):
      self.name = name
      self.sender = sender
      self.tool = tool
      self.data = data
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import six
  import warnings
  import matplotlib.cbook
  import matplotlib.widgets
  from matplotlib.rcsetup import validate_stringlist
  import matplotlib.backend_tools
label_desc: Use image node_id 1 to create a new ToolEvent object from inherited base classes: object with example: obj = ToolEvent(name, sender, tool, data)