How to use the es5-ext/string/#/contains.call function in es5-ext

d = module.exports = function (dscr, value/*, options*/) {
	var c, e, w, options, desc;
	if ((arguments.length < 2) || (typeof dscr !== 'string')) {
		options = value;
		value = dscr;
		dscr = null;
	} else {
		options = arguments[2];
	}
	if (dscr == null) {
		c = w = true;
		e = false;
	} else {
		c = contains.call(dscr, 'c');
		e = contains.call(dscr, 'e');
		w = contains.call(dscr, 'w');
	}

	desc = { value: value, configurable: c, enumerable: e, writable: w };
	return !options ? desc : assign(normalizeOpts(options), desc);
};

d = module.exports = function (dscr, value/*, options*/) {
	var c, e, w, options, desc;
	if ((arguments.length < 2) || (typeof dscr !== 'string')) {
		options = value;
		value = dscr;
		dscr = null;
	} else {
		options = arguments[2];
	}
	if (dscr == null) {
		c = w = true;
		e = false;
	} else {
		c = contains.call(dscr, 'c');
		e = contains.call(dscr, 'e');
		w = contains.call(dscr, 'w');
	}

	desc = { value: value, configurable: c, enumerable: e, writable: w };
	return !options ? desc : assign(normalizeOpts(options), desc);
};

SetIterator = module.exports = function (set, kind) {
	if (!(this instanceof SetIterator)) return new SetIterator(set, kind);
	Iterator.call(this, set.__setData__, set);
	if (!kind) kind = 'value';
	else if (contains.call(kind, 'key+value')) kind = 'key+value';
	else kind = 'value';
	defineProperty(this, '__kind__', d('', kind));
};
if (setPrototypeOf) setPrototypeOf(SetIterator, Iterator);

defineProperty(base, name, desc);
			desc.value = null;
			return base[name];
		};
	}
	dgs.set = function (value) {
		if (hasOwnProperty.call(this, name)) {
			throw new TypeError("Cannot assign to lazy defined '" + name + "' property of " + this);
		}
		dgs.get.call(this);
		this[cacheName] = value;
	};
	if (options.desc) {
		desc = {
			configurable: contains.call(options.desc, 'c'),
			enumerable: contains.call(options.desc, 'e')
		};
		if (cacheName === name) {
			desc.writable = contains.call(options.desc, 'w');
			desc.value = null;
		} else {
			writable = contains.call(options.desc, 'w');
			desc.get = dgs.get;
			desc.set = dgs.set;
		}
		delete options.desc;
	} else if (cacheName === name) {
		desc = {
			configurable: Boolean(options.configurable),
			enumerable: Boolean(options.enumerable),
			writable: Boolean(options.writable),
			value: null

d = module.exports = function (dscr, value/*, options*/) {
	var c, e, w, options, desc;
	if ((arguments.length < 2) || (typeof dscr !== 'string')) {
		options = value;
		value = dscr;
		dscr = null;
	} else {
		options = arguments[2];
	}
	if (dscr == null) {
		c = w = true;
		e = false;
	} else {
		c = contains.call(dscr, 'c');
		e = contains.call(dscr, 'e');
		w = contains.call(dscr, 'w');
	}

	desc = { value: value, configurable: c, enumerable: e, writable: w };
	return !options ? desc : assign(normalizeOpts(options), desc);
};

d = module.exports = function (dscr, value/*, options*/) {
	var c, e, w, options, desc;
	if ((arguments.length < 2) || (typeof dscr !== 'string')) {
		options = value;
		value = dscr;
		dscr = null;
	} else {
		options = arguments[2];
	}
	if (dscr == null) {
		c = w = true;
		e = false;
	} else {
		c = contains.call(dscr, 'c');
		e = contains.call(dscr, 'e');
		w = contains.call(dscr, 'w');
	}

	desc = { value: value, configurable: c, enumerable: e, writable: w };
	return !options ? desc : assign(normalizeOpts(options), desc);
};

ArrayIterator = module.exports = function (arr, kind) {
	if (!(this instanceof ArrayIterator)) throw new TypeError("Constructor requires 'new'");
	Iterator.call(this, arr);
	if (!kind) kind = "value";
	else if (contains.call(kind, "key+value")) kind = "key+value";
	else if (contains.call(kind, "key")) kind = "key";
	else kind = "value";
	defineProperty(this, "__kind__", d("", kind));
};
if (setPrototypeOf) setPrototypeOf(ArrayIterator, Iterator);

desc.value = resolvable ? call.call(value, base, options) : value;
			defineProperty(base, name, desc);
			desc.value = null;
			return base[name];
		};
	}
	dgs.set = function (value) {
		if (hasOwnProperty.call(this, name)) {
			throw new TypeError("Cannot assign to lazy defined '" + name + "' property of " + this);
		}
		dgs.get.call(this);
		this[cacheName] = value;
	};
	if (options.desc) {
		desc = {
			configurable: contains.call(options.desc, "c"),
			enumerable: contains.call(options.desc, "e")
		};
		if (cacheName === name) {
			desc.writable = contains.call(options.desc, "w");
			desc.value = null;
		} else {
			writable = contains.call(options.desc, "w");
			desc.get = dgs.get;
			desc.set = dgs.set;
		}
		delete options.desc;
	} else if (cacheName === name) {
		desc = {
			configurable: Boolean(options.configurable),
			enumerable: Boolean(options.enumerable),
			writable: Boolean(options.writable),

PrimitiveSetIterator = module.exports = function (set, kind) {
	if (!(this instanceof PrimitiveSetIterator)) {
		return new PrimitiveSetIterator(set, kind);
	}
	Iterator.call(this, keys(set.__setData__), set);
	kind = (!kind || !contains.call(kind, 'key+value')) ? 'value' : 'key+value';
	defineProperties(this, {
		__kind__: d('', kind),
		__data__: d('w', set.__setData__)
	});
};
if (setPrototypeOf) setPrototypeOf(PrimitiveSetIterator, Iterator);

if (hasOwnProperty.call(this, name)) {
			throw new TypeError("Cannot assign to lazy defined '" + name + "' property of " + this);
		}
		dgs.get.call(this);
		this[cacheName] = value;
	};
	if (options.desc) {
		desc = {
			configurable: contains.call(options.desc, 'c'),
			enumerable: contains.call(options.desc, 'e')
		};
		if (cacheName === name) {
			desc.writable = contains.call(options.desc, 'w');
			desc.value = null;
		} else {
			writable = contains.call(options.desc, 'w');
			desc.get = dgs.get;
			desc.set = dgs.set;
		}
		delete options.desc;
	} else if (cacheName === name) {
		desc = {
			configurable: Boolean(options.configurable),
			enumerable: Boolean(options.enumerable),
			writable: Boolean(options.writable),
			value: null
		};
	}
	delete options.configurable;
	delete options.enumerable;
	delete options.writable;
	return dgs;