static <C> @NonNull SuggestionProvider<C> blockingStrings(
            final BlockingSuggestionProvider.@NonNull Strings<C> blockingStringsSuggestionProvider
    ) {
        return blockingStringsSuggestionProvider;
    }
Utility method to simplify implementing {@link BlockingSuggestionProvider.Strings}
using a lambda, for methods that accept a {@link SuggestionProvider}.

@param blockingStringsSuggestionProvider suggestion provider
@param <C>                               command sender type
@return suggestion provider
cloud-core/src/main/java/org/incendo/cloud/suggestion/SuggestionProvider.java