code: def _check_bv_annot(descriptions):
      markers_basename = set(
          [dd.rstrip("0123456789 ") for dd in descriptions]
      )
      bv_markers = set(_BV_EVENT_IO_OFFSETS.keys()).union(
          set(_OTHER_ACCEPTED_MARKERS.keys())
      )
      return len(markers_basename - bv_markers) == 0
  
imports: import configparser
  import os
  import os.path
  import re
  from datetime import datetime, timezone
  from io import StringIO
  import numpy
  from ..._fiff.constants import FIFF
  from ..._fiff.meas_info import _empty_info
  from ..._fiff.utils import _mult_cal_one, _read_segments_file
  from ...annotations import Annotations, read_annotations
  from ...channels import make_dig_montage
  from ...defaults import HEAD_SIZE_DEFAULT
  from ...transforms import _sph_to_cart
  from ...utils import _DefaultEventParser, fill_doc, logger, verbose, warn
  from ..base import BaseRaw
label_desc: Use image node_id 9 for calling a global function with example usage: _check_bv_annot(descriptions) and returns: unknown