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+// exif parses raw EXIF information given a block of raw EXIF data. It can also
+// construct new EXIF information, and provides tools for doing so. This package
+// is not involved with the parsing of particular file-formats.
+//
+// The EXIF data must first be extracted and then provided to us. Conversely,
+// when constructing new EXIF data, the caller is responsible for packaging
+// this in whichever format they require.
+package exif