[Bug]: encode test outdated?

[YuriArthas]

Bug description

My @colyseus/schema version: 3.0.42, install by npm, running in cocos creator 3.8.6

// schema\test\Schema.test.ts:293

        it("bigints", () => {
            class Data extends Schema {
                @type("biguint64") u64: bigint;
                @type("bigint64") i64: bigint;
            }

            const buint = BigInt(Number.MAX_SAFE_INTEGER) + 10000n;
            const bint = BigInt(Number.MIN_SAFE_INTEGER) - 10000n;

            let data = new Data();
            data.u64 = buint;
            data.i64 = bint;

            let encoded = data.encode();

            const decoded = new Data();
            decoded.decode(encoded);

            assert.strictEqual(decoded.u64, buint);
            assert.strictEqual(decoded.i64, bint);
        });

Is this sample code outdated?
It seems like it doesn't compile in TypeScript anymore.

---

class TestSchema extends Schema {
    @type("string")
    special: string; 

    @type("string", { manual: false })
    name: string; 
}

        const testInstance = new TestSchema();
        const encoder = new Encoder(testInstance);
        encoder.discardChanges();

        testInstance.special = "special";
        testInstance.name = "name";

        const bytes1 = encoder.encodeAll();
        console.log(bytes1);  // 0 byte!

        testInstance.setDirty("name");  

        // testInstance.name = "name2";
        const bytes2 = encoder.encodeAll();
        console.log(bytes2);  // 6 bytes

        const client_schema = new TestSchema();

        const decoder = new Decoder(client_schema); 
        decoder.decode(bytes2);
        console.log(client_schema);  // just has name, no "special"

The second issue is that you must call setDirty() for the fields to sync correctly. For example, name can be synced, but special cannot.