code: def _str2tuple(string):
      """Convert shape string to list, internal use only.
  
      Parameters
      ----------
      string: str
          Shape string.
  
      Returns
      -------
      list of str
          Represents shape.
      """
      return re.findall(r"\d+", string)
  
imports: import re
  import copy
  import json
  import warnings
  from .symbol import Symbol
label_desc: Use image node_id 1 for calling a global function with example usage: _str2tuple(string) and returns: re