code: def test_init(self):
      fig, ax = plt.subplots()
  
      s = AsinhScale(axis=None, linear_width=23.0)
      assert s.linear_width == 23
      assert s._base == 10
      assert s._subs == (2, 5)
  
      tx = s.get_transform()
      assert isinstance(tx, AsinhTransform)
      assert tx.linear_width == s.linear_width
  
imports: import copy
  import matplotlib.pyplot
  from matplotlib.scale import AsinhScale, AsinhTransform, LogTransform, InvertedLogTransform, SymmetricalLogTransform
  import matplotlib.scale
  from matplotlib.ticker import AsinhLocator, LogFormatterSciNotation
  from matplotlib.testing.decorators import check_figures_equal, image_comparison
  import numpy
  from numpy.testing import assert_allclose
  import io
  import pytest
label_desc: Use image node_id 2 for calling the TestAsinhScale obj's underlying member method code with example usage: obj.test_init() without return types