1142     off(type: 'progress', callback?: (receivedSize: number, totalSize: number) => void): void;  method
1226     off(type: 'complete' | 'pause' | 'remove', callback?: () => void): void;  method
1298     off(type: 'fail', callback?: (err: number) => void): void;  method
2246     off(type: 'progress', callback?: (uploadedSize: number, totalSize: number) => void): void;  method
2318     off(type: 'headerReceive', callback?: (header: object) => void): void;  method
2390     off(type: 'complete' | 'fail', callback?: Callback<Array<TaskState>>): void;  method
4796       off(event: 'progress', callback?: (progress: Progress) => void): void;  method
4849       off(event: 'completed', callback?: (progress: Progress) => void): void;  method
4901       off(event: 'failed', callback?: (progress: Progress) => void): void;  method
4949       off(event: 'pause', callback?: (progress: Progress) => void): void;  method
4997       off(event: 'resume', callback?: (progress: Progress) => void): void;  method
5045       off(event: 'remove', callback?: (progress: Progress) => void): void;  method
5098       off(event: 'response', callback?: Callback<HttpResponse>): void;  method
5122       off(event: 'faultOccur', callback?: Callback<Faults>): void;  method
5146       off(event: 'wait', callback?: Callback<WaitingReason>): void;  method