Provide example implementation of using Wilma as a Bulkhead.

What is Bulkhead? Bulkhead takes its name from a principle of ship design where walls or barriers separate the ship into watertight compartments so that, if the hull is breached, the failure is limited to a specific compartment and prevents (or delays) the ship from sinking. The "water" in this analogy is heavy request load saturating the system entry points (a component entry points) or the failure of a dependent service. In cloud application architecture or microservices architecture, using bulkheads between components/microservices of the system means protecting specific components/microservices from heavy lead/when it is replaced, etc.