# Functions
GetFetcher returns a GCS read function for objects in a given bucket.
NewDedupeStorage returns a struct which can be used to store identity -> index mappings backed by Spanner.
NewIssuerStorage creates a new GCSStorage.
# Structs
DedupStorage is a GCP Spanner based dedup storage implementation for SCTFE.
IssuersStorage is a key value store backed by GCS on GCP to store issuer chains.