message: document step_request_builder.rs.
diff: @@ -19,60 +19,60 @@ pub struct StepRequestBuilder {
  }
  impl StepRequestBuilder {
  - /// TODO: doc comment.
  + /// Returns a new `StepRequestBuilder`.
  pub fn new() -> Self {
  Default::default()
  }
  - /// TODO: doc comment.
  + /// Sets `parent_state_hash` to the given [`Digest`].
  pub fn with_parent_state_hash(mut self, parent_state_hash: Digest) -> Self {
  self.parent_state_hash = parent_state_hash;
  self
  }
  - /// TODO: doc comment.
  + /// Sets `protocol_version` to the given [`ProtocolVersion`].
  pub fn with_protocol_version(mut self, protocol_version: ProtocolVersion) -> Self {
  self.protocol_version = protocol_version;
  self
  }
  - /// TODO: doc comment.
  + /// Pushes the given [`SlashItem`] into `slash_items`.
  pub fn with_slash_item(mut self, slash_item: SlashItem) -> Self {
  self.slash_items.push(slash_item);
  self
  }
  - /// TODO: doc comment.
  + /// Pushes the given [`RewardItem`] into `reward_items`.
  pub fn with_reward_item(mut self, reward_item: RewardItem) -> Self {
  self.reward_items.push(reward_item);
  self
  }
  - /// TODO: doc comment.
  + /// Pushes the given [`EvictItem`] into `evict_items`.
  pub fn with_evict_item(mut self, evict_item: EvictItem) -> Self {
  self.evict_items.push(evict_item);
  self
  }
  - /// TODO: doc comment.
  + /// Sets `run_auction`.
  pub fn with_run_auction(mut self, run_auction: bool) -> Self {
  self.run_auction = run_auction;
  self
  }
  - /// TODO: doc comment.
  + /// Sets `next_era_id` to the given [`EraId`].
  pub fn with_next_era_id(mut self, next_era_id: EraId) -> Self {
  self.next_era_id = next_era_id;
  self
  }
  - /// TODO: doc comment.
  + /// Sets `era_end_timestamp_millis`.
  pub fn with_era_end_timestamp_millis(mut self, era_end_timestamp_millis: u64) -> Self {
  self.era_end_timestamp_millis = era_end_timestamp_millis;
  self
  }
  - /// TODO: doc comment.
  + /// Consumes the [`StepRequestBuilder`] and returns a [`StepRequest`].
  pub fn build(self) -> StepRequest {
  StepRequest::new(
  self.parent_state_hash,
  