//! Gas storage keys
pubusenamada_core::storage::Key;constERROR_MSG:&str="Cannot obtain a valid db key";/// Get the transaction hash prefix under the `all` subkey
pubfnpred_prefix()-> Key{Key::parse("pred/gas").expect(ERROR_MSG)}/// Get the full transaction hash prefix under the `last` subkey
pubfngas_prefix()-> Key{Key::parse("gas").expect(ERROR_MSG)}