code: def is_ascii_encoding(encoding):
      """Checks if a given encoding is ascii."""
      try:
          return codecs.lookup(encoding).name == "ascii"
      except LookupError:
          return False
  
imports: import codecs
  import io
  import os
  import re
  import sys
  from weakref import WeakKeyDictionary
label_desc: Use image node_id 3 for calling a global function with example usage: is_ascii_encoding(encoding) and returns: unknown, False