from typing import List


def get_mid_slice_indices(num_slices: int, mid_slice_range: int) -> List[int]:
    """
    Get the indices of the slices around the mid-slice image.

    Args:
        num_slices: The number of slices of the volume.
        mid_slice_range: The number of slices around the mid-slice image on each side for which we want the indices.

    Returns:
        The indices of the mid-slice +/- mid_slice_range.
    """
    mid_slice_index = num_slices // 2
    mid_slice_indices = list(range(mid_slice_index - mid_slice_range, mid_slice_index + mid_slice_range + 1))
    assert mid_slice_indices[0] >= 0
    return mid_slice_indices