The World Info interface is used to get even more information out of an IWorld object.

It might be required for you to import the package if you encounter any issues, so better be safe than sorry and add the import.
import crafttweaker.world.IWorldInfo;

ZenGetter	ZenMethod	반환 타입
ZenGetter commandsAllowed	ZenMethod isCommandsAllowed()	반환 타입 bool
ZenGetter borderCenterX	ZenMethod getBorderCenterX()	반환 타입 double
ZenGetter borderCenterZ	ZenMethod getBorderCenterZ()	반환 타입 double
ZenGetter borderDamagePerBlock	ZenMethod getBorderDamagePerBlock()	반환 타입 double
ZenGetter borderSafeZone	ZenMethod getBorderSafeZone()	반환 타입 double
ZenGetter borderSize	ZenMethod getBorderSize()	반환 타입 double
ZenGetter borderWarningDistance	ZenMethod getBorderWarningDistance()	반환 타입 int
ZenGetter borderWarningTime	ZenMethod getBorderWarningTime()	반환 타입 int
ZenGetter cleanWeatherTime	ZenMethod getCleanWeatherTime()	반환 타입 double
ZenGetter difficulty	ZenMethod getDifficulty()	반환 타입 string
ZenGetter generatorOptions	ZenMethod getGeneratorOptions()	반환 타입 string
ZenGetter lastTimePlayed	ZenMethod getLastTimePlayed()	반환 타입 long
ZenGetter rainTime	ZenMethod getRainTime()	반환 타입 int
ZenGetter saveVersion	ZenMethod getSaveVersion()	반환 타입 int
ZenGetter seed	ZenMethod getSeed()	반환 타입 long
ZenGetter spawnX	ZenMethod getSpawnX()	반환 타입 int
ZenGetter spawnY	ZenMethod getSpawnY()	반환 타입 int
ZenGetter spawnZ	ZenMethod getSpawnZ()	반환 타입 int
ZenGetter thunderTime	ZenMethod getThunderTime()	반환 타입 int
ZenGetter versionId	ZenMethod getVersionId()	반환 타입 int
ZenGetter versionName	ZenMethod getVersionName()	반환 타입 string
ZenGetter worldName	ZenMethod getWorldName()	반환 타입 string
ZenGetter worldTotalTime	ZenMethod getWorldTotalTime()	반환 타입 long
ZenGetter boderLerpTarget	ZenMethod getBoderLerpTarget()	반환 타입 double
ZenGetter boderLerpTime	ZenMethod getBoderLerpTime()	반환 타입 long
ZenGetter difficultyLocked	ZenMethod isDifficultyLocked()	반환 타입 bool
ZenGetter hardcoreModeEnabled	ZenMethod isHardcoreModeEnabled()	반환 타입 bool
ZenGetter initialized	ZenMethod isInitialized()	반환 타입 bool
ZenGetter mapFeaturesEnabled	ZenMethod isMapFeaturesEnabled()	반환 타입 bool
ZenGetter thundering	ZenMethod isThundering()	반환 타입 bool
ZenGetter versionSnapshot	ZenMethod isVersionSnapshot()	반환 타입 bool