code: def _get(self, field):
          
          if field in self._list_fields():
              return self.__proxy__.get(field)
          else:
              raise KeyError('Key \"%s\" not in model. Available fields are %s.' % (field, ', '.join(self._list_fields())))
docs: Return the value for the queried field.
  
          Get the value of a given field. The list of all queryable fields is
          documented in the beginning of the model class.
  
          >>> out = m._get('graph')
  
          Parameters
          ----------
          field : string
              Name of the field to be retrieved.
  
          Returns
          -------
          out : value
              The current value of the requested field.