def METHOD_NAME():
    ASSET = "asset"
    A_LABEL = "a_label"
    dict_values = {ENERGY_PRODUCTION: {ASSET: {LABEL: A_LABEL}}}
    result = find_value_by_key(data=dict_values, target=LABEL)
    assert isinstance(
        result, str
    ), f"The key {A_LABEL} only exists once, but its value {A_LABEL} is not provided. Instead, result is {result}."
    assert (
        result == A_LABEL
    ), f"The value of the searched key should have been {A_LABEL}, but is {result}."