Importing the package

Link to importing-the-package

It might be required for you to import the package if you encounter any issues (like casting an Array), so better be safe than sorry and add the import.
import crafttweaker.entity.IEntityFishHook;

IEntityFishHook extends IEntity. That means all functions available to IEntities also are available to IEntityFishHook.

ZenGetterGetterMethodReturn Type
ZenGetter
caughtEntity
GetterMethod
caughtEntity()
Return Type
IEntity
ZenGetter
angler
GetterMethod
getAngler()
Return Type
IPlayer
SetterNameSetterMethodParameter Type
SetterName
lureSpeed
SetterMethod
setLureSpeed(lureSpeed)
Parameter Type
int
SetterName
luck
SetterMethod
setLuck(luck)
Parameter Type
int