class_docstr: Tests functions for representative datasets.
class_docstr_tok: ["Tests","functions","for","representative","datasets","."]
code: def test_not_implemented_loader(self):
      with self.assertRaisesRegex(
          NotImplementedError, '"load" is not implemented.'
      ):
          repr_dataset.RepresentativeDatasetLoader().load()
  
imports: import random
  import numpy
  from tensorflow.compiler.mlir.quantization.tensorflow.python import representative_dataset
  from tensorflow.core.protobuf import meta_graph_pb2
  from tensorflow.python.client import session
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.platform import test
  from tensorflow.python.types import core
label_desc: Use image node_id 4 for calling the RepresentativeDatasetTest obj's underlying member method code with example usage: obj.test_not_implemented_loader() without return types