message: hide advanced doc store api
diff: @@ -107,7 +107,7 @@ impl StoreReader {
  /// document.
  ///
  /// Advanced API. In most cases use [get](Self::get).
  - pub fn block_checkpoint(&self, doc_id: DocId) -> crate::Result<Checkpoint> {
  + fn block_checkpoint(&self, doc_id: DocId) -> crate::Result<Checkpoint> {
  self.skip_index.seek(doc_id).ok_or_else(|| {
  crate::TantivyError::InvalidArgument(format!("Failed to lookup Doc #{}.", doc_id))
  })
  @@ -124,7 +124,7 @@ impl StoreReader {
  /// Loads and decompresses a block.
  ///
  /// Advanced API. In most cases use [get](Self::get).
  - pub fn read_block(&self, checkpoint: &Checkpoint) -> io::Result<Block> {
  + fn read_block(&self, checkpoint: &Checkpoint) -> io::Result<Block> {
  if let Some(block) = self.cache.get_from_cache(&checkpoint.byte_range.start) {
  return Ok(block);
  }
  @@ -178,7 +178,7 @@ impl StoreReader {
  /// Advanced API.
  ///
  /// In most cases use [get_document_bytes](Self::get_document_bytes).
  - pub fn get_document_bytes_from_block(
  + fn get_document_bytes_from_block(
  block: OwnedBytes,
  doc_id: DocId,
  checkpoint: &Checkpoint,
  @@ -308,7 +308,7 @@ impl StoreReader {
  /// In most cases use [get_async](Self::get_async)
  ///
  /// Loads and decompresses a block asynchronously.
  - pub async fn read_block_async(&self, checkpoint: &Checkpoint) -> crate::AsyncIoResult<Block> {
  + async fn read_block_async(&self, checkpoint: &Checkpoint) -> crate::AsyncIoResult<Block> {
  if let Some(block) = self.cache.get_from_cache(&checkpoint.byte_range.start) {
  return Ok(block.clone());
  }
  