# Functions
New creates a new shipper that detects new TSDB blocks in dir and uploads them to remote if necessary.
ReadMetaFile reads the given meta from <dir>/thanos.shipper.json.
WriteMetaFile writes the given meta into <dir>/thanos.shipper.json.
# Constants
DefaultMetaFilename is the default JSON filename for meta information.
MetaVersion1 represents 1 version of meta.