class_docstr: Tests CurvesInterpreter.
code: def setUp(self):
      super().setUp()
      self.dataset = lit_dataset.IndexedDataset(
          base=_StaticTestDataset(), id_fn=caching.input_hash
      )
      self.model = _StaticTestModel()
      self.ci = curves.CurvesInterpreter()
  
imports: from typing import NamedTuple
  from absl.testing import absltest
  from absl.testing import parameterized
  from lit_nlp.api import dataset
  from lit_nlp.api import model
  from lit_nlp.api import types
  from lit_nlp.components import curves
  from lit_nlp.lib import caching
label_desc: Use image node_id 1 for calling the CurvesInterpreterTest obj's underlying member method code with example usage: obj.setUp() without return types