LengthBasedExampleSelector 텍스트 길이를 기준으로 FewShotPromptTemplate 사용시 제시되는 example 들 중에 원하는 example을 선택할수 있음 [결과] 'Human: What do you know about France?\nAI: \n Here is what I know:\n Capital: Paris\n Language: French\n Food: Wine and Cheese\n Currency: Euro\n \n\nHuman: What do you know about Italy?\nAI: \n I know this:\n Capital: Rome\n Language: Italian\n Food: Pizza and Pasta\n Currency: Euro\n ..
