def METHOD_NAME(self, samples: List[Dict]):
    """
    Generate a mini-batch for this dataset.
    To convert this into a regular mini-batch we use the following
    logic:
        1. Select a dataset using the specified probability distribution.
        2. Call the collater function of the selected dataset.
    """
    if len(samples) == 0:
        return None
    selected_key = self.sampling_func(list(self.datasets.keys()))
    selected_samples = [sample[selected_key] for sample in samples]
    return self.datasets[selected_key].METHOD_NAME(selected_samples)