nullable example DTO

SampleDto.ts

export class NestedTypeDto {
  @ApiProperty({
    type: string
  })
  value: string;
}

export class SampleDto {
  @ApiProperty({
    type: NestedTypeDto,
    required: true,
  })
  propertyWorksCorrectly: NestedTypeDto;
  
    @ApiProperty({
    type: NestedTypeDto,
    required: true,
    nullable: false,
  })
  wrappedInAllOf: NestedTypeDto;
}