code: def test_dimension_pprint(self):
      dim = Dimension(
          "Test dimension",
          cyclic=True,
          type=float,
          unit="Twilight zones",
      )
      self.assertEqual(
          dim.pprint_value_string(3.23451),
          "Test dimension: 3.2345 Twilight zones",
      )
      self.assertEqual(
          dim.pprint_value_string(4.23441),
          "Test dimension: 4.2344 Twilight zones",
      )
      self.assertEqual(
          dim.pprint_value(3.23451, print_unit=True),
          "3.2345 Twilight zones",
      )
      self.assertEqual(
          dim.pprint_value(4.23441, print_unit=True),
          "4.2344 Twilight zones",
      )
  
imports: import numpy
  from holoviews import Dataset, HoloMap
  from holoviews.core import Dimension
  from holoviews.core.ndmapping import MultiDimensionalMapping, NdMapping, UniformNdMapping
  from holoviews.core.overlay import Overlay
  from holoviews.element import Curve
  from holoviews.element.comparison import ComparisonTestCase
label_desc: Use image node_id 3 for calling the DimensionTest obj's underlying member method code with example usage: obj.test_dimension_pprint() without return types