code: def test_text_to_code_cell_empty_code():
      text = """```{python}
  ```
  """
      lines = text.splitlines()
      cell, pos = RMarkdownCellReader().read(lines)
  
      assert cell.cell_type == "code"
      assert cell.source == ""
      assert cell.metadata == {"language": "python"}
      assert lines[pos:] == []
  
file_path: jupytext/tests/functional/others/test_cells.py
imports: import pytest
  from nbformat.v4.nbbase import new_markdown_cell
  from jupytext.cell_reader import LightScriptCellReader, RMarkdownCellReader, paragraph_is_fully_commented, uncomment
  from jupytext.cell_to_text import RMarkdownCellExporter
label_desc: Use image node_id 5 for calling a global function with example usage: test_text_to_code_cell_empty_code() without return types