code: function seconds(input, name, min, max) {
    if (typeof input === 'string') input = Math.floor(ms(input) / 1000);
    if (name && (input < min || input > max)) 
      throw new Error(name + ' was out of range, must be between ' 
        + ms(min*1000, {long:true}) + ' and ' + ms(max*1000, {long:true}));
    return input;
  }
docs: ## seconds
  
  @param  {string|number} input Either a string like "1 second" or a number of seconds
  @param  {string=} name        A name to enable validation
  @param  {number=} min         The minimum number of seconds
  @param  {number=} max         The maximum number of seconds
  @return {number}              The number of seconds
  @api private