class_docstr: For testing of basic composite element types
class_docstr_tok: ["For","testing","of","basic","composite","element","types"]
docstr: Test to avoid regression of #3403 where unicode characters don't capitalize
docstr_tok: ["Test","to","avoid","regression","of","#","3403","where","unicode","characters","do","n't","capitalize"]
code: def test_add_unicode(self):
      "Test to avoid regression of #3403 where unicode characters don't capitalize"
      layout = Curve([-1, -2, -3]) + Curve([1, 2, 3]).relabel(
          "𝜗_1 vs th_2"
      )
      elements = list(layout)
      self.assertEqual(len(elements), 2)
  
imports: import numpy
  import pytest
  from holoviews import AdjointLayout, Element, GridSpace, HoloMap, Layout, NdLayout, Overlay
  from holoviews.element import Curve, HLine, Image
  from holoviews.element.comparison import ComparisonTestCase
label_desc: Use image node_id 3 for calling the CompositeTest obj's underlying member method code with example usage: obj.test_add_unicode() without return types