//! Engram is an asynchronous two-tier cache.
//!//! Values are kept deserialized in an in-memory Moka cache and persisted as
//! serialized blobs in SQLite. L2 rows may be Zstandard-compressed.
modcompression;modconfig;modengine;moderror;modmemory;modstorage;pubuseconfig::{Compression, EngramBuilder, SqliteSynchronous};pubuseengine::{CacheEntry, CacheKey, CacheMetadata, CacheTier, Engram};pubuseerror::{Error,Result};