Expose functions to load LeRobot episodes (rerun-io#9141)

Author: oxkitsune

crates/store/re_data_loader/src/lib.rs

@@ -15,11 +15,11 @@ mod loader_directory;
 mod loader_rrd;
 
 #[cfg(not(target_arch = "wasm32"))]
-mod lerobot;
+pub mod lerobot;
 
 // This loader currently only works when loading the entire dataset directory, and we cannot do that on web yet.
 #[cfg(not(target_arch = "wasm32"))]
-mod loader_lerobot;
+pub mod loader_lerobot;
 
 #[cfg(not(target_arch = "wasm32"))]
 mod loader_external;

crates/store/re_data_loader/src/loader_lerobot.rs

@@ -160,7 +160,12 @@ fn prepare_episode_chunks(
     store_ids
 }
 
-fn load_episode(
+/// Loads a single episode from a `LeRobot` dataset and converts it into a collection of Rerun chunks.
+///
+/// This function processes an episode from the dataset by extracting the relevant data columns and
+/// converting them into appropriate Rerun data structures. It handles different types of data
+/// (videos, images, scalar values, etc.) based on their data type specifications in the dataset metadata.
+pub fn load_episode(
     dataset: &LeRobotDataset,
     episode: EpisodeIndex,
 ) -> Result<Vec<Chunk>, DataLoaderError> {