class_docstr: A test dataset for regression testing.
class_docstr_tok: ["A","test","dataset","for","regression","testing","."]
code: def examples(self) -> list[lit_types.JsonDict]:
      return [
          {"x_1": 0.0, "x_2": 0.0, "y": 0.0},
          {"x_1": 0.5, "x_2": 0.4, "y": 1.0},
      ]
  
imports: from unittest import mock
  from absl.testing import absltest
  from lit_nlp.api import dataset
  from lit_nlp.api import model
  from lit_nlp.api import types
  from lit_nlp.components import minimal_targeted_counterfactuals
  from lit_nlp.lib import caching
  import numpy
  import scipy.special
label_desc: Use image node_id 2 for calling the RegressionTestDataset obj's underlying member method code with example usage: obj.examples() and returns: list