text: import { curry } from 'ramda'
  
  /**
   * Calculate the amount of a tax rate.
   * <br>
   * is currified
   *
   * @sig Number -> Number -> Number
   * @param {Number} rate decimal from 0 to 1
   * @param {Number} amount
   * @return {Number}
   * @example
   *
   * rateAt(0.2)(1000) //=> 200
   * rateAt(0,2, 1000) //=> 200
   *
   */
  let rateAt = (rate, amount) => amount * rate
  rateAt = curry(rateAt)
  export { rateAt }
  