code: def __repr__(self):
      (section, section_titles) = self._get_summary_struct()
      return _toolkit_repr_print(
          self, section, section_titles, width=30
      )
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import turicreate
  from turicreate.toolkits._internal_utils import _toolkit_repr_print, _precomputed_field, _raise_error_if_not_sframe
label_desc: Use image node_id 3 for calling the _SampleTransformer obj's underlying member method code with example usage: obj.__repr__() and returns: _toolkit_repr_print