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The client is in charge of cleaning up on the file exchange after the GetFile operation.
Filesize
As part of a progress response during a GetFile operation the pillar can choose to deliver the size of the file so that the client knows how large a file is to be expected.
Checksum data
As part of a progress response during a GetFile operation the pillar can choose to deliver the checksum of the file so that the client can verify that it is the correct file is received.
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