def __getitem__(self, idx: int) -> Tuple[np.ndarray, np.ndarray, np.ndarray, np.ndarray]: if self.time_features: dim_idx = idx // self.n_time_samples dim_slice = slice(dim_idx, dim_idx + 1) idx = idx % self.n_time_samples else: dim_slice = slice(None) x_start = idx x_end = x_start + self.lookback_len y_start = x_end - self.lookback_aux_len y_end = y_start + self.lookback_aux_len + self.horizon_len x = self.data_x[x_start:x_end, dim_slice] y = self.data_y[y_start:y_end, dim_slice] x_time = self.timestamps[x_start:x_end] y_time = self.timestamps[y_start:y_end] return x, y, x_time, y_time Hello, thank you for sharing the code. I would like to ask why this place retrieves data in this way 
