code: def _is_image_data(self, node):
      return len(
          [
              child
              for child in node.children
              if child.kind
              in (
                  NodeKind.Convolution,
                  NodeKind.Pooling,
                  NodeKind.Unpooling,
              )
          ]
      )
  
imports: from __future__ import unicode_literals
  from google.protobuf import text_format
  import numpy
  from mmdnn.conversion.caffe.graph import GraphBuilder, NodeKind, LAYER_IN_TRAIN_PROTO
  from mmdnn.conversion.caffe.mapper import NodeMapper, get_handler_name
  from mmdnn.conversion.caffe.resolver import get_caffe_resolver, has_pycaffe
  from mmdnn.conversion.caffe.errors import print_stderr, ConversionError
  from mmdnn.conversion.caffe.common_graph import Graph
  from mmdnn.conversion.caffe.utils import get_lower_case, get_upper_case
label_desc: Use image node_id 4 for calling the DataReshaper obj's underlying member method code with example usage: obj._is_image_data(node) and returns: len