code: def _eeg_like(ch_name):
      # Some bti recordigs look like "F4-POz", so let's at least mark them
      # as EEG
      if ch_name.count("-") != 1:
          return
      ch, ref = ch_name.split("-")
      eeg_names = _1020_names()
      return ch.lower() in eeg_names and ref.lower() in eeg_names
  
imports: import functools
  import os.path
  from io import BytesIO
  from itertools import count
  import numpy
  from ..._fiff._digitization import _make_bti_dig_points
  from ..._fiff.constants import FIFF
  from ..._fiff.meas_info import _empty_info
  from ..._fiff.tag import _coil_trans_to_loc, _loc_to_coil_trans
  from ..._fiff.utils import _mult_cal_one, read_str
  from ...transforms import Transform, combine_transforms, invert_transform
  from ...utils import _stamp_to_dt, _validate_type, logger, path_like, verbose
  from ..base import BaseRaw
  from .constants import BTI
  from .read import read_char, read_dev_header, read_double, read_double_matrix, read_float, read_float_matrix, read_int16, read_int16_matrix, read_int32, read_int64, read_transform, read_uint16, read_uint32
label_desc: Use image node_id 22 for calling a global function with example usage: _eeg_like(ch_name) and returns: unknown