code: def test_format_formatted_feature():
      assert format_feature(FormattedFeatureName("a b")) == "a b"
      assert format_feature("a b") == "a{}b".format(_SPACE)
  
imports: from eli5.formatters import FormattedFeatureName
  from eli5.formatters.text import _format_feature, _SPACE
label_desc: Use image node_id 2 for calling a global function with example usage: test_format_formatted_feature() without return types