code: def _convert_boxes_to_roi_format(boxes):
      concat_boxes = ivy.concat(boxes, axis=0)
      temp = []
      for i, b in enumerate(boxes):
          temp.append(ivy.full_like(b[:, :1], i))
      ids = ivy.concat(temp, axis=0)
      rois = ivy.concat([ids, concat_boxes], axis=1)
      return rois
  
imports: from typing import Optional, Tuple, Union, Sequence
  import ivy
  from ivy.utils.backend import current_backend
  from ivy.func_wrapper import handle_array_function, handle_partial_mixed_function, inputs_to_ivy_arrays, to_native_arrays_and_back, inputs_to_native_shapes, handle_out_argument, handle_nestable, handle_array_like_without_promotion, handle_device, handle_backend_invalid
  from ivy.utils.exceptions import handle_exceptions
label_desc: Use image node_id 26 for calling a global function with example usage: _convert_boxes_to_roi_format(boxes) and returns: rois