class_docstr: Base class for containers.
  
  Containers are classes that collect semantically related Artists such as
  the bars of a bar plot.
class_docstr_tok: ["Base","class","for","containers",".","Containers","are","classes","that","collect","semantically","related","Artists","such","as","the","bars","of","a","bar","plot","."]
docstr: Fire an event when property changed, calling all of the
  registered callbacks.
docstr_tok: ["Fire","an","event","when","property","changed",",","calling","all","of","the","registered","callbacks","."]
code: def pchanged(self):
      """
      Fire an event when property changed, calling all of the
      registered callbacks.
      """
      for oid, func in list(six.iteritems(self._propobservers)):
          func(self)
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import six
  import matplotlib.cbook
  import matplotlib.artist
label_desc: Use image node_id 11 for calling the Container obj's underlying member method code with example usage: obj.pchanged() without return types