code: def _instantiate_default_info_chs():
      """Populate entries in info['chs'] with default values."""
      return dict(
          loc=np.array([0, 0, 0, 1] * 3, dtype="f4"),
          ch_name=None,
          unit_mul=FIFF.FIFF_UNITM_NONE,
          coord_frame=FIFF.FIFFV_COORD_UNKNOWN,
          coil_type=FIFF.FIFFV_COIL_NONE,
          range=1.0,
          unit=FIFF.FIFF_UNIT_V,
          cal=1.0,
          scanno=None,
          kind=FIFF.FIFFV_MISC_CH,
          logno=None,
      )
  
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 1 for calling a global function with example usage: _instantiate_default_info_chs() and returns: dict