How to use the web3-core-subscriptions.LogSubscription function in web3-core-subscriptions

getSubscription(moduleInstance, type, options) {
        switch (type) {
            case 'logs':
                return new LogSubscription(
                    options,
                    this.utils,
                    this.formatters,
                    moduleInstance,
                    new GetPastLogsMethod(this.utils, this.formatters, moduleInstance)
                );
            case 'newBlockHeaders':
                return new NewHeadsSubscription(this.utils, this.formatters, moduleInstance);
            case 'pendingTransactions':
                return new NewPendingTransactionsSubscription(this.utils, this.formatters, moduleInstance);
            case 'syncing':
                return new SyncingSubscription(this.utils, this.formatters, moduleInstance);
            case 'accountsChanged':
                return new AccountsChangedSubscription(this.utils, this.formatters, moduleInstance);
            case 'networkChanged':
                return new NetworkChangedSubscription(this.utils, this.formatters, moduleInstance);

getSubscription(moduleInstance, type, options) {
        switch (type) {
            case 'logs':
                return new LogSubscription(
                    options,
                    this.utils,
                    this.formatters,
                    moduleInstance,
                    new GetPastLogsMethod(this.utils, this.formatters)
                );
            case 'newBlockHeaders':
                return new NewHeadsSubscription(this.utils, this.formatters, moduleInstance);
            case 'pendingTransactions':
                return new NewPendingTransactionsSubscription(this.utils, this.formatters, moduleInstance);
            case 'syncing':
                return new SyncingSubscription(this.utils, this.formatters, moduleInstance);
            default:
                throw new Error(`Unknown subscription: ${type}`);
        }
    }