How to use the web3-core-method.GetBlockByNumberMethod function in web3-core-method

if (moduleInstance.currentProvider.supportsSubscriptions()) {
            return new SocketTransactionObserver(
                moduleInstance.currentProvider,
                this.getTimeout(moduleInstance),
                moduleInstance.transactionConfirmationBlocks,
                new GetTransactionReceiptMethod(this.utils, this.formatters, moduleInstance),
                new NewHeadsSubscription(this.utils, this.formatters, moduleInstance)
            );
        }

        return new HttpTransactionObserver(
            moduleInstance.currentProvider,
            this.getTimeout(moduleInstance),
            moduleInstance.transactionConfirmationBlocks,
            new GetTransactionReceiptMethod(this.utils, this.formatters, moduleInstance),
            new GetBlockByNumberMethod(this.utils, this.formatters, moduleInstance)
        );
    }
}

if (moduleInstance.currentProvider.supportsSubscriptions()) {
            return new SocketTransactionObserver(
                moduleInstance.currentProvider,
                this.getTimeout(moduleInstance),
                moduleInstance.transactionConfirmationBlocks,
                new GetTransactionReceiptMethod(this.utils, this.formatters, moduleInstance),
                new NewHeadsSubscription(this.utils, this.formatters, moduleInstance)
            );
        }

        return new HttpTransactionObserver(
            moduleInstance.currentProvider,
            this.getTimeout(moduleInstance),
            moduleInstance.transactionConfirmationBlocks,
            new GetTransactionReceiptMethod(this.utils, this.formatters, moduleInstance),
            new GetBlockByNumberMethod(this.utils, this.formatters, moduleInstance)
        );
    }
}