A datetime object representing the last time the file was modified.
etag
str
The ETag contains a value that you can use to perform operations
conditionally.
content_length
int
The length of the content returned. If the entire blob was requested,
the length of blob in bytes. If a subset of the blob was requested, the
length of the returned subset.
content_range
str
Indicates the range of bytes returned in the event that the client
requested a subset of the blob.