message: Default value doesn't need to be pub.
  Preferred way to access this is through a default instance of
  `StorageCosts`.
diff: @@ -9,7 +9,7 @@ use casper_types::{
  use super::gas::Gas;
  -pub const DEFAULT_GAS_PER_BYTE_COST: u32 = 625_000_000;
  +const DEFAULT_GAS_PER_BYTE_COST: u32 = 625_000_000;
  #[derive(Copy, Clone, PartialEq, Eq, Serialize, Deserialize, Debug, DataSize)]
  pub struct StorageCosts {
  