Constant frame_support::weights::constants::WEIGHT_REF_TIME_PER_MILLIS
pub const WEIGHT_REF_TIME_PER_MILLIS: u64 = 1_000_000_000; // 1_000_000_000u64
pub const WEIGHT_REF_TIME_PER_MILLIS: u64 = 1_000_000_000; // 1_000_000_000u64