assert(((dynamic_dim_index && total_dim_size <= input_dim_size) ||
            (!dynamic_dim_index && total_dim_size == input_dim_size)) &&
           "invalid split sizes");

    // Update the dynamic dimension with calculated concrete size.
    if (dynamic_dim_index)
      split_sizes[*dynamic_dim_index] = input_dim_size - total_dim_size;

    // Parameters for constructing each slice.