/**
     * Get the value for the key 'search_engine.password'. <br>
     * The value is, e.g.  <br>
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getSearchEnginePassword();

    /**
     * Get the value for the key 'search_engine.password' as {@link Integer}. <br>
     * The value is, e.g.  <br>

     * @param value The value, can be null.
     * @return this
     * @since 5.0
     */
    Property<T> value(@Nullable T value);

    /**
     * Sets the property to have the same value as the given provider, replacing whatever value the property already had.
     * This property will track the value of the provider and query its value each time the value of the property is queried.

      // Put types estimated to be the most frequent first.
      if (value instanceof CharSequence) {
        return ((CharSequence) value).length() == 0;
      } else if (value instanceof Collection) {
        return ((Collection<?>) value).isEmpty();
      } else if (value instanceof Map) {
        return ((Map<?, ?>) value).isEmpty();
      } else if (value instanceof Optional) {

	Store8(&u.value, value)
}

// And takes value and performs a bit-wise
// "and" operation with the value of u, storing
// the result into u.
//
// The full process is performed atomically.
//
//go:nosplit
func (u *Uint8) And(value uint8) {
	And8(&u.value, value)
}

// Or takes value and performs a bit-wise
// "or" operation with the value of u, storing
// the result into u.
//

	{value: 0x0000, lo: 0x0b},
	{value: 0x0808, lo: 0x80, hi: 0x95},
	{value: 0x3308, lo: 0x96, hi: 0x99},
	{value: 0x0808, lo: 0x9a, hi: 0x9a},
	{value: 0x3308, lo: 0x9b, hi: 0xa3},
	{value: 0x0808, lo: 0xa4, hi: 0xa4},
	{value: 0x3308, lo: 0xa5, hi: 0xa7},
	{value: 0x0808, lo: 0xa8, hi: 0xa8},
	{value: 0x3308, lo: 0xa9, hi: 0xad},
	{value: 0x0040, lo: 0xae, hi: 0xaf},
	{value: 0x0818, lo: 0xb0, hi: 0xbe},

	{value: 0x3008, lo: 0x86, hi: 0x88},
	{value: 0x0040, lo: 0x89, hi: 0x89},
	{value: 0x3008, lo: 0x8a, hi: 0x8c},
	{value: 0x3b08, lo: 0x8d, hi: 0x8d},
	{value: 0x0040, lo: 0x8e, hi: 0x8f},
	{value: 0x0008, lo: 0x90, hi: 0x90},
	{value: 0x0040, lo: 0x91, hi: 0x96},
	{value: 0x3008, lo: 0x97, hi: 0x97},
	{value: 0x0040, lo: 0x98, hi: 0xa5},
	{value: 0x0008, lo: 0xa6, hi: 0xaf},

        assertEquals("", value);

        value = FessFunctions.maskEmail("aaa bbb ccc");
        assertEquals("aaa bbb ccc", value);

        value = FessFunctions.maskEmail("******@****.***");
        assertEquals("******@****.***", value);

        value = FessFunctions.maskEmail("******@****.***");
        assertEquals("******@****.***", value);

        value = FessFunctions.maskEmail("111 ******@****.*** 222");

			args:         []Arg{{Name: "foo", Value: "bar1"}, {Name: "foo", Value: "bar2"}},
			name:         "foo",
			value:        "zz",
			nArgs:        -1,
			expectedArgs: []Arg{{Name: "foo", Value: "zz"}, {Name: "foo", Value: "zz"}},
		},
		{
			testName:     "add new argument",
			args:         []Arg{{Name: "foo", Value: "bar1"}, {Name: "foo", Value: "bar2"}},
			name:         "z",
			value:        "zz",
			nArgs:        -1,

	{value: 0x0000, lo: 0x0b},
	{value: 0x0808, lo: 0x80, hi: 0x95},
	{value: 0x3308, lo: 0x96, hi: 0x99},
	{value: 0x0808, lo: 0x9a, hi: 0x9a},
	{value: 0x3308, lo: 0x9b, hi: 0xa3},
	{value: 0x0808, lo: 0xa4, hi: 0xa4},
	{value: 0x3308, lo: 0xa5, hi: 0xa7},
	{value: 0x0808, lo: 0xa8, hi: 0xa8},
	{value: 0x3308, lo: 0xa9, hi: 0xad},
	{value: 0x0040, lo: 0xae, hi: 0xaf},
	{value: 0x0818, lo: 0xb0, hi: 0xbe},

     */
    MapProperty<K, V> value(@Nullable Map<? extends K, ? extends V> entries);

    /**
     * Sets the property to have the same value of the given provider, and replaces any existing value.
     *
     * This property will track the value of the provider and query its value each time the value of this property is queried.
     * When the provider has no value, this property will also have no value.
     *