IReadOnlyPolicyRegistry<TKey>
                    public interface IReadOnlyPolicyRegistry<TKey> : IEnumerable<KeyValuePair<TKey, IsPolicy>>, IEnumerable
                
                Represents a read-only collection of policies keyed by TKey.
            
                
Gets the total number of policies in the registry.
            
Gets the  IsPolicy with the specified key.
            To retrieve a policy directly as a particular Policy type or Policy interface (avoiding a cast), use the  Get<T> method.
Determines whether the specified key exists.
            
Gets the policy stored under the provided key, casting to TPolicy.
            
Gets the policy stored under the provided key, casting to TPolicy.