At its core, a stream is just a sequence of data that arrives over time. You don't have all of it at once. You process it incrementally as it becomes available.
self.file.close()
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Netflix walks away from its deal to buy Warner Bros. after Paramount came back with a better offer
国务院财政、税务主管部门提出货物、服务、无形资产、不动产的具体范围，报国务院批准后公布施行。