Android(Kotlin) Retrofit - Custom Request Headers | Android Studio Tutorial ----___<<<<< 2022. 2. 4. 01:09 아래의 영상을 참고했습니다. https://www.youtube.com/watch?v=oyKmeW2Kldc&list=PLSrm9z4zp4mF1Ssdfuocy2XH5Bw4wLLNw&index=5
