code: def test_chop_cells_mixed_width():
      """Mixed single and double-width characters."""
      text = "あ1り234が5と6う78"
      assert chop_cells(text, 3) == [
          "あ1",
          "り2",
          "34",
          "が5",
          "と6",
          "う7",
          "8",
      ]
  
file_path: rich/tests/test_cells.py
imports: from rich import cells
  from rich.cells import chop_cells
label_desc: Use image node_id 7 for calling a global function with example usage: test_chop_cells_mixed_width() without return types