code: def _file_size(fname):
      """Get the file size in bytes."""
      with open(fname, "rb") as f:
          f.seek(0, os.SEEK_END)
          return f.tell()
  
file_path: mne-python/mne/_fiff/utils.py
imports: import os
  import os.path
  import numpy
  from .constants import FIFF
  from .meas_info import _get_valid_units
label_desc: Use image node_id 5 for calling a global function with example usage: _file_size(fname) and returns: f