def METHOD_NAME():
    ASSET = "asset"
    A_LABEL = "a_label"
    dict_values = {
        ENERGY_PRODUCTION: {ASSET: {LABEL: A_LABEL}},
        ENERGY_PROVIDERS: {ASSET: {LABEL: A_LABEL}},
    }
    result = find_value_by_key(data=dict_values, target=LABEL)
    assert isinstance(
        result, list
    ), f"The key {LABEL} appears twice in dict_values. Still, no list of occurrences is provided, but {result}."
    expected_output = [A_LABEL, A_LABEL]
    assert (
        result == expected_output
    ), f"Not all key duplicates ({expected_output}) were identified, but {result}."