1129     off(type: 'progress', callback?: (receivedSize: number, totalSize: number) => void): void;  method
1207     off(type: 'complete' | 'pause' | 'remove', callback?: () => void): void;  method
1273     off(type: 'fail', callback?: (err: number) => void): void;  method
2157     off(type: 'progress', callback?: (uploadedSize: number, totalSize: number) => void): void;  method
2223     off(type: 'headerReceive', callback?: (header: object) => void): void;  method
2295     off(type: 'complete' | 'fail', callback?: Callback<Array<TaskState>>): void;  method
4444       off(event: 'progress', callback?: (progress: Progress) => void): void;  method
4492       off(event: 'completed', callback?: (progress: Progress) => void): void;  method
4540       off(event: 'failed', callback?: (progress: Progress) => void): void;  method
4562       off(event: 'pause', callback?: (progress: Progress) => void): void;  method
4584       off(event: 'resume', callback?: (progress: Progress) => void): void;  method
4606       off(event: 'remove', callback?: (progress: Progress) => void): void;  method
4630       off(event: 'response', callback?: Callback<HttpResponse>): void;  method