Write clear documentation for this function. Include description, parameters, return value, exceptions, and usage examples. ```python def sync_data( source: str, dest: str, *, mode: str = "merge", conflict_strategy: str = "source_wins", dry_run: bool = False, transform: Callable[[dict], dict] | None = None, filter_fn: Callable[[dict], bool] | None = None, batch_size: int = 100, retry_count: int = 3, on_error: Literal["skip", "abort", "log"] = "log", ) -> SyncResult: ``` The documentation should be understandable by a developer who has never used this function.