participantFields: {
  ...
  type: FieldType
  value: AddressInputValueModel | string | null
}

type FieldType = {
    TEXT = "TEXT",
    CHECKBOX = "CHECKBOX",
    SIGNATURE = "SIGNATURE",
    IMAGE = "IMAGE",
    DROPDOWN = "DROPDOWN", // 신규 추가
    NAME = "NAME", // 신규 추가
    COMPANY_NAME = "COMPANY_NAME", // 신규 추가
    ADDRESS = "ADDRESS", // 신규 추가
}

// 신규 추가 (type 이 ADDRESS 일 경우 해당 value 를 반환)
type AddressInputValueModel = { 
    address1: string;
    address2: string;
    city: string;
    province: string;
    zip: string;
    country: AddressCountryCode;
}

class DropdownFieldInTemplateResponseDto {
  type: 'DROPDOWN';
  required: boolean
  size: {
    width: number;
    heigth: number;
  };
  position: {
  	x: number;
	  y: number;
	  page: number;
	};
  textStyle: {
    size: number;
    font: string;
  };
  dataLabel: string;
}
  
class NameFieldInTemplateResponseDto {
  type: 'NAME';
  required: boolean
  size: {
    width: number;
    heigth: number;
  };
  position: {
  	x: number;
	  y: number;
	  page: number;
	};
  textStyle: {
    size: number;
    font: string;
  };
  dataLabel: string;
}

class CompanyNameFieldInTemplateResponseDto {
  type: 'COMPANY_NAME';
  required: boolean
  size: {
    width: number;
    heigth: number;
  };
  position: {
  	x: number;
	  y: number;
	  page: number;
	};
  textStyle: {
    size: number;
    font: string;
  };
  dataLabel: string;
}

class AddressFieldInTemplateResponseDto {
  type: 'ADDRESS';
  required: boolean
  size: {
    width: number;
    heigth: number;
  };
  position: {
  	x: number;
	  y: number;
	  page: number;
	};
  textStyle: {
    size: number;
    font: string;
  };
  dataLabel: string;
}