* @param key The key of the setting.
     * @param defaultValue The default value if the setting is not found.
     * @return The setting value as a float.
     */
    public float getAsFloat(final String key, final float defaultValue) {
        return getAs(key, defaultValue, Float::parseFloat);
    }

    /**
     * Retrieves a setting value as a boolean.
     * @param key The key of the setting.

    }

    @Test
    public void test_setAndGetAsFloat() {
        String key = "key";
        float value = 0.01F;
        settings.set(key, value);
        assertEquals(value, settings.getAsFloat(key, -1), 0);
    }

    @Test
    public void test_setAndGetAsBoolean() {
        String key = "key";
        settings.set(key, true);
        assertEquals(true, settings.getAsBoolean(key, false));