code: def _find_only_image_column(sframe):
      """
      Finds the only column in `sframe` with a type of turicreate.Image.
      If there are zero or more than one image columns, an exception will
      be raised.
      """
      from turicreate import Image
  
      return _find_only_column_of_type(
          sframe,
          target_type=Image,
          type_name="image",
          col_name="feature",
      )
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  from ..data_structures.sframe import SArray
  from ..data_structures.sframe import SFrame
  from ..data_structures.sgraph import SGraph
  from ..data_structures.sgraph import Vertex
  from ..data_structures.sgraph import Edge
  from .._cython.cy_sarray import UnitySArrayProxy
  from .._cython.cy_sframe import UnitySFrameProxy
  from .._cython.cy_graph import UnityGraphProxy
  from ..toolkits._main import ToolkitError
  import json
  import six
label_desc: Use image node_id 4 for calling a global function with example usage: _find_only_image_column(sframe) and returns: _find_only_column_of_type