사용자와 친구의 관계Relationship between user and friend
카카오톡 친구 요청이 아니어서 알 수 없음Unknown because it's not a KakaoTalk friend request
친구Friend
친구 아님Not friend
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
Returns an array containing the constants of this enum type, in the order they're declared.