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use crate::MigrateAction; /// Migration function: (key, value) -> MigrateAction<T> pub type TypedMigrationFn<K, T> = fn(&K, &T) -> MigrateAction<T>; /// (from_version, migration_fn) pub type TypedMigration<K, T> = (u16, TypedMigrationFn<K, T>);