pub const TRANSACTION_GAS_LIMIT_UPPER_BOUND: u64 = 1_256_636; // int(0.4 * 3_141_592);
pub const TRANSACTION_INTRINSIC_GAS: u64 = 21_000;
pub const UNLOCK_TX_GAS_LIMIT: u64 = TRANSACTION_GAS_LIMIT_UPPER_BOUND;
pub const GAS_RESERVE_ESTIMATE_SECURITY_FACTOR: f64 = 1.1;