class ReeNumber::NumberToHuman

def determine_unit(exponent, units, locale)
  exp = DECIMAL_UNITS[exponent]
  case units
  when Hash
    units[exp] || ""
  when String, Symbol
    t("human.#{units}.#{exp}", locale: locale, default_by_locale: :en)
  else
    t("human.decimal_units.#{exp}", count: number.to_i, default_by_locale: :en)
  end
end