def METHOD_NAME(elec_txt_dataframe):
    """Parse keys from EIA series_id string."""
    input_ = elec_txt_dataframe.iloc[[2], :]
    expected = pd.DataFrame(
        {
            "series_code": ["RECEIPTS_BTU"],
            "fuel_agg": ["NG"],
            "geo_agg": ["US"],
            "sector_agg": ["2"],
            "temporal_agg": ["Q"],
        },
        index=[2],
    )
    actual = bulk._extract_keys_from_series_id(input_)
    pd.testing.assert_frame_equal(actual, expected)