'ExactMatchLevel' object has no attribute 'get_comparison'

[tombetinashe]

I am currently receiving this error in splink 4 "ExactMatchLevel' object has no attribute 'get_comparison".Your assistance will be highly appreciated.

extended_model_settings = {
"unique_id_column_name": "record_id",
"link_type": "link_only",
"blocking_rules_to_generate_predictions": blocking_rules,
"comparisons": [
{
"output_column_name": "Full name",
"comparison_levels": [
{
"sql_condition": "(firstname_l IS NULL OR firstname_r IS NULL) and (surname_l IS NULL OR surname_r IS NULL)",
"label_for_charts": "Null",
"is_null_level": True,
},
# full name match
cll.ExactMatchLevel("full_name", term_frequency_adjustments=True),
# typos - keep levels across full name rather than scoring separately
cll.JaroWinklerLevel("full_name", 0.9),
cll.JaroWinklerLevel("full_name", 0.8),
# name switched
cll.ColumnsReversedLevel("firstname", "surname"),
# name switched + typo

            # single name match
            cll.ExactMatchLevel("firstname", term_frequency_adjustments=True),
            cll.ExactMatchLevel("surname", term_frequency_adjustments=True),
            # single name cross-match
            {
                "sql_condition": "firstname_l = surname_r OR surname_l = firstname_r",
                "label_for_charts": "single name cross-matches",
            },  # single name typos
            cll.JaroWinklerLevel("firstname", 0.9),
            cll.JaroWinklerLevel("surname", 0.9),
            # the rest
            cll.ElseLevel(),
        ],
    },
    cl.DateOfBirthComparison(
        "dob",
        input_is_string=True,),
    cll.ExactMatchLevel("gender"),
    
    
  
],
"retain_intermediate_calculation_columns": True,

}

linker_detailed=Linker(dfs, extended_model_settings, db_api=DuckDBAPI())

[ADBond]

It looks like at the end of your settings you have accidentally put a comparison level instead of a comparison, you should have cl.ExactMatch("gender").