How to use the quantulum3.load.get_key_from_dimensions function in quantulum3

def get_unit_from_dimensions(dimensions, text, lang="en_US"):
    """
    Reconcile a unit based on its dimensionality.
    """

    key = load.get_key_from_dimensions(dimensions)

    try:
        unit = load.units(lang).derived[key]
    except KeyError:
        _LOGGER.debug(u"\tCould not find unit for: %s", key)
        unit = cls.Unit(
            name=build_unit_name(dimensions, lang),
            dimensions=dimensions,
            entity=get_entity_from_dimensions(dimensions, text, lang),
        )

    # Carry on original composition
    unit.original_dimensions = dimensions
    return unit

def get_entity_from_dimensions(dimensions, text, lang="en_US"):
    """
    Infer the underlying entity of a unit (e.g. "volume" for "m^3") based on
    its dimensionality.
    """

    new_derived = [
        {"base": load.units(lang).names[i["base"]].entity.name, "power": i["power"]}
        for i in dimensions
    ]

    final_derived = sorted(new_derived, key=lambda x: x["base"])
    key = load.get_key_from_dimensions(final_derived)

    ent = dis.disambiguate_entity(key, text, lang)
    if ent is None:
        _LOGGER.debug("\tCould not find entity for: %s", key)
        ent = cls.Entity(name="unknown", dimensions=new_derived)

    return ent