code: def cache_effect(self) -> CacheEffect | None:
      # IDENTIFIER '/' NUMBER
      if tkn := self.expect(lx.IDENTIFIER):
          if self.expect(lx.DIVIDE):
              num = self.require(lx.NUMBER).text
              try:
                  size = int(num)
              except ValueError:
                  raise self.make_syntax_error(
                      f"Expected integer, got {num!r}"
                  )
              else:
                  return CacheEffect(tkn.text, size)
      return None
  
imports: from dataclasses import dataclass, field
  from typing import NamedTuple, Callable, TypeVar, Literal, cast
  import lexer
  from plexer import PLexer
label_desc: Use image node_id 9 for calling the Parser obj's underlying member method code with example usage: obj.cache_effect() and returns: None, CacheEffect