code: def has_default(self, key):
      return key in self.schema and self.schema[key].has_default()
  
imports: from __future__ import absolute_import
  from __future__ import print_function
  from __future__ import division
  import inspect
  import importlib
  import re
label_desc: Use image node_id 7 for calling the SchemaDict obj's underlying member method code with example usage: obj.has_default(key) and returns: unknown