class_docstr: Service schema handler 
class_docstr_tok: ["Service","schema","handler"]
code: def default(self):
      return self._default
  
imports: import itertools
  import re
  import attr
  import six
  from ...utilities.pyhocon import ConfigTree
  from .action import Action
label_desc: Use image node_id 1 for calling the Service obj's underlying member method code with example usage: obj.default() and returns: self