class_docstr: Montage for digitized electrode and headshape position data.
  
  .. warning:: Montages are typically created using one of the helper
               functions in the ``See Also`` section below instead of
               instantiating this class directly.
  
  Parameters
  ----------
  dig : list of dict
      The object containing all the dig points.
  ch_names : list of str
      The names of the EEG channels.
  
  See Also
  --------
  read_dig_captrak
  read_dig_dat
  read_dig_egi
  read_dig_fif
  read_dig_hpts
  read_dig_localite
  read_dig_polhemus_isotrak
  make_dig_montage
  
  Notes
  -----
  .. versionadded:: 0.9.0
class_docstr_tok: ["Montage","for","digitized","electrode","and","headshape","position","data",".","..","warning",":",":","Montages","are","typically","created","using","one","of","the","helper","functions","in","the","``","See","Also","``","section","below","instead","of","instantiating","this","class","directly",".","Parameters","--","--","--","--","--","dig",":","list","of","dict","The","object","containing","all","the","dig","points",".","ch_names",":","list","of","str","The","names","of","the","EEG","channels",".","See","Also","--","--","--","--","read_dig_captrak","read_dig_dat","read_dig_egi","read_dig_fif","read_dig_hpts","read_dig_localite","read_dig_polhemus_isotrak","make_dig_montage","Notes","--","--","-","..","versionadded",":",":","0.9.0"]
docstr: Remove the fiducial points from a montage.
  
  Parameters
  ----------
  %(verbose)s
  
  Returns
  -------
  inst : instance of DigMontage
      The instance, modified in-place.
  
  Notes
  -----
  MNE will transform a montage to the internal "head" coordinate
  frame if the fiducials are present. Under most circumstances, this
  is ideal as it standardizes the coordinate frame for things like
  plotting. However, in some circumstances, such as saving a ``raw``
  with intracranial data to BIDS format, the coordinate frame
  should not be changed by removing fiducials.
code: def remove_fiducials(self, verbose=None):
      """Remove the fiducial points from a montage.
  
      Parameters
      ----------
      %(verbose)s
  
      Returns
      -------
      inst : instance of DigMontage
          The instance, modified in-place.
  
      Notes
      -----
      MNE will transform a montage to the internal "head" coordinate
      frame if the fiducials are present. Under most circumstances, this
      is ideal as it standardizes the coordinate frame for things like
      plotting. However, in some circumstances, such as saving a ``raw``
      with intracranial data to BIDS format, the coordinate frame
      should not be changed by removing fiducials.
      """
      for d in self.dig.copy():
          if d["kind"] == FIFF.FIFFV_POINT_CARDINAL:
              self.dig.remove(d)
      return self
  
imports: import os.path
  import re
  from collections import OrderedDict
  from copy import deepcopy
  from dataclasses import dataclass
  import numpy
  from .._fiff._digitization import _coord_frame_const, _count_points_by_type, _ensure_fiducials_head, _format_dig_points, _get_data_as_dict_from_dig, _get_dig_eeg, _get_fid_coords, _make_dig_points, _read_dig_fif, write_dig
  from .._fiff.constants import CHANNEL_LOC_ALIASES, FIFF
  from .._fiff.meas_info import create_info
  from .._fiff.open import fiff_open
  from .._fiff.pick import _picks_to_idx, channel_type, pick_types
  from .._freesurfer import get_mni_fiducials
  from ..defaults import HEAD_SIZE_DEFAULT
  from ..transforms import Transform, _ensure_trans, _fit_matched_points, _frame_to_str, _quat_to_affine, _sph_to_cart, _topo_to_sph, _verbose_frames, apply_trans, get_ras_to_neuromag_trans
  from ..utils import _check_fname, _check_option, _on_missing, _pl, _validate_type, copy_function_doc_to_method_doc, fill_doc, verbose, warn
  from ..utils.docs import docdict
  from ..viz import plot_montage
  from ._dig_montage_utils import _parse_brainvision_dig_montage, _read_dig_montage_egi
label_desc: Use image node_id 16 for calling the DigMontage obj's underlying member method code with example usage: obj.remove_fiducials(verbose) and returns: self