code: def test_parse_double_hyphen_metadata():
      assert parse_key_equal_value("--key1 value1 --key2 value2") == {
          "incorrectly_encoded_metadata": "--key1 value1 --key2 value2"
      }
  
imports: import jupytext
  from jupytext.cell_metadata import parse_key_equal_value
  from jupytext.compare import compare
label_desc: Use image node_id 2 for calling a global function with example usage: test_parse_double_hyphen_metadata() without return types