I figured out that the example code is wrong:
const uploadTask: MicrosoftGraph.OneDriveLargeFileUploadTask = await MicrosoftGraph.OneDriveLargeFileUploadTask.create(client, file, options);
Should be:
import {Client, OneDriveLargeFileUploadTask} from "@microsoft/microsoft-graph-client"
const uploadTask: OneDriveLargeFileUploadTask = await OneDriveLargeFileUploadTask.create(client, file, options);
But I have trouble converting MSGraphClient } from "@microsoft/sp-http" that is provided by SPFx, to Client from "@microsoft/microsoft-graph-client"
Anyone can help?