Defines the possible sealing types for a slot, if the slot shall be sealed in its usage.
The Slot can not be sealed at all.
The Slot is sealed with a single Seal per Cavity e.g. a CavitySeal or a CavityPlug.
The Slot is sealed with a more complex sealing variant, typically sealing multiple cavities with a single seal (e.g. a MulitCavityPlug or a combination of those).
The Slot is sealed by moulding it with some sort of sealing compound.