public boolean getBoolean(String key, boolean defaultValue) {
		Boolean val = getBoolean(key);
		return val != null ? val : defaultValue;
	}
Returns the given value from this Configuration or its fallback

@param key          The key of the value to return
@param defaultValue The value to return if the key wasn't found
@return The associated value if it was found or `defaultValue` if not
src/main/java/dev/jbang/Configuration.java