MCLivingHealEvent

This event is fired just before an entity is healed. This allows you to modify the amount of healing or prevent it all together by canceling the event.

The event is cancelable.

If the event is canceled, the entity is not healed

The event does not have a result.

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 at the very top of the file.

import crafttweaker.api.event.entity.living.MCLivingHealEvent;

MCLivingHealEvent extends MCLivingEvent. That means all methods available in MCLivingEvent are also available in MCLivingHealEvent

Gets the amount of healing.

Return Type: float

MCLivingHealEvent.getAmount() as float
event.getAmount();

Sets the amount of healing.

Return Type: void

MCLivingHealEvent.setAmount(amount as float) as void
event.setAmount(0.5);