declare enum InvoiceItemUnit {
    PIECE = "piece",
    FLAT_RATE = "flat_rate",
    TIME_UNIT = "time_unit",
    PROJECT_DAY = "project_day",
    METER = "m",
    CENTIMETER = "cm",
    MILLIMETER = "mm",
    KILOMETER = "km",
    INCH = "in",
    FOOT = "ft",
    YARD = "yd",
    MILE = "mi",
    KILOGRAM = "kg",
    GRAM = "g",
    MILLIGRAM = "mg",
    TON = "t",
    POUND = "lb",
    OUNCE = "oz",
    LITER = "L",
    MILLILITER = "ml",
    GALLON = "gal",
    QUART = "qt",
    PINT = "pt",
    CUP = "cup",
    FLUID_OUNCE = "fl oz",
    MILLISECOND = "ms",
    SECOND = "s",
    MINUTE = "m",
    HOUR = "h",
    DAY = "d",
    WEEK = "w",
    MONTH = "M",
    YEAR = "y",
    SQUARE_METER = "m\u00B2",
    SQUARE_CENTIMETER = "cm\u00B2",
    SQUARE_KILOMETER = "km\u00B2",
    SQUARE_INCH = "in\u00B2",
    SQUARE_FOOT = "ft\u00B2",
    SQUARE_YARD = "yd\u00B2",
    SQUARE_MILE = "mi\u00B2",
    CUBIC_METER = "m\u00B3",
    CUBIC_CENTIMETER = "cm\u00B3",
    CUBIC_KILOMETER = "km\u00B3",
    CUBIC_INCH = "in\u00B3",
    CUBIC_FOOT = "ft\u00B3",
    CUBIC_YARD = "yd\u00B3",
    CUBIC_MILE = "mi\u00B3",
    KILOMETER_PER_HOUR = "km/h",
    MILE_PER_HOUR = "mi/h",
    METERS_PER_SECOND = "m/s",
    FEET_PER_SECOND = "ft/s"
}

export { InvoiceItemUnit };