tainty. The uncertainty is calculated for each point using the passed `uncertainty function` that takes points logit prediction as input. Args: logits (`float`): Logit predictions for P points. uncertainty_function: A function that takes logit predictions for P points and returns their uncertainties. num_points (`int`): The number of points P to sample. oversample_ratio (`int`): Oversampling parameter. importance_sample_ratio (`float`): Ratio of points that are sampled via importance sampling. Returns: point_coordinates (`torch.Tensor`): Coordinates for P sampled points. r