def valid?
      calculation_phase_validator = EnumAttributeValidator.new('String', ["TAX_SUBTOTAL_PHASE", "TAX_TOTAL_PHASE"])
      return false unless calculation_phase_validator.valid?(@calculation_phase)
      inclusion_type_validator = EnumAttributeValidator.new('String', ["ADDITIVE", "INCLUSIVE"])
      return false unless inclusion_type_validator.valid?(@inclusion_type)
      return true
    end
def valid?
      calculation_phase_validator = EnumAttributeValidator.new('String', ["TAX_SUBTOTAL_PHASE", "TAX_TOTAL_PHASE"])
      return false unless calculation_phase_validator.valid?(@calculation_phase)
      inclusion_type_validator = EnumAttributeValidator.new('String', ["ADDITIVE", "INCLUSIVE"])
      return false unless inclusion_type_validator.valid?(@inclusion_type)
      return true
    end
Check to see if the all the properties in the model are valid
 @return true if the model is valid