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### LRI File Structure
The file is made up if blocks each with a short header, a protobuf message, and possibly some associated data.
Things seem to be **little endian**
#### Block Header
The header is 32 bytes long. and goes as follows:
| bytes | meaning |
| ----- | ------- |
| 4 | Magic Number: "LELR" |
| 8 | block length |
| 8 | protobuf message offset from the start of the block |
| 4 | protobuf message length |
| 1 | message type. 0 for `LightHeader` *(as described in lightheader.proto)*, 1 for `view_preferences.proto`, or 2 for gps data |
| 7 | reserved |
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