如何创建一个Native Module的多个实例？

// MyNativeModule.java

import com.facebook.react.bridge.Arguments;
import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.bridge.ReactContextBaseJavaModule;
import com.facebook.react.bridge.ReactMethod;
import com.facebook.react.bridge.WritableMap;

import java.util.HashMap;
import java.util.Map;

public class MyNativeModule extends ReactContextBaseJavaModule {
    private Map<String, MyNativeModuleInstance> instances;

    public MyNativeModule(ReactApplicationContext reactContext) {
        super(reactContext);
        instances = new HashMap<>();
    }

    @Override
    public String getName() {
        return "MyNativeModule";
    }

    @ReactMethod
    public String createInstance(String param1, String param2) {
        MyNativeModuleInstance instance = new MyNativeModuleInstance(param1, param2);
        String instanceId = generateInstanceId();
        instances.put(instanceId, instance);
        return instanceId;
    }

    @ReactMethod
    public void doSomething(String instanceId, String data) {
        MyNativeModuleInstance instance = instances.get(instanceId);
        if (instance != null) {
            instance.doSomething(data);
        }
    }

    // Other methods for managing instances

    private String generateInstanceId() {
        // Generate a unique instance ID
        // ...
    }
}

// MyNativeModuleInstance.java

public class MyNativeModuleInstance {
    private String param1;
    private String param2;

    public MyNativeModuleInstance(String param1, String param2) {
        this.param1 = param1;
        this.param2 = param2;
    }

    public void doSomething(String data) {
        // Do something with the instance data
        // ...
    }
}