def adjustment_type=(adjustment_type)
      validator = EnumAttributeValidator.new('String', ["TAX"])
      unless validator.valid?(adjustment_type)
        fail ArgumentError, "invalid value for 'adjustment_type', must be one of #{validator.allowable_values}."
      end
      @adjustment_type = adjustment_type
    end
def adjustment_type=(adjustment_type)
      validator = EnumAttributeValidator.new('String', ["TAX"])
      unless validator.valid?(adjustment_type)
        fail ArgumentError, "invalid value for 'adjustment_type', must be one of #{validator.allowable_values}."
      end
      @adjustment_type = adjustment_type
    end
Custom attribute writer method checking allowed values (enum).
 @param [Object] adjustment_type Object to be assigned