code: def _valid_error_name(name):
      """Check whether name is a valid error name."""
      return all(x.isalnum() or x in "_." for x in name)
  
imports: import ctypes
  import functools
  import os
  import re
  import sys
  import types
  from typing import Callable, Sequence, Optional
  import numpy
  from .None import libinfo
label_desc: Use image node_id 6 for calling a global function with example usage: _valid_error_name(name) and returns: all