code: def _str2int(in_str):
      # Convert string to integer, where empty string gives 0
      return int(in_str) if in_str else 0
  
imports: import base64
  import os.path
  import sys
  import warnings
  import zlib
  from io import StringIO
  from xml.parsers.expat import ExpatError
  import numpy
  from ..nifti1 import data_type_codes, intent_codes, xform_codes
  from ..xmlutils import XmlParser
  from .gifti import GiftiCoordSystem, GiftiDataArray, GiftiImage, GiftiLabel, GiftiLabelTable, GiftiMetaData
  from .util import array_index_order_codes, gifti_encoding_codes, gifti_endian_codes
label_desc: Use image node_id 2 for calling a global function with example usage: _str2int(in_str) and returns: unknown