code: def memoize(f):
      memo = {}
  
      def helper(x, init_length=None, dynamic_length=True):
          if x not in memo:
              memo[(x, init_length, dynamic_length)] = f(
                  x, init_length, dynamic_length
              )
          return memo[(x, init_length, dynamic_length)]
  
      return helper
  
file_path: coremltools/coremltools/converters/mil/mil/types/type_list.py
imports: from .None import type_int
  from .annotate import annotate
  from .get_type_info import get_type_info
  from .type_spec import Type
  from .type_void import void
label_desc: Use image node_id 1 for calling a global function with example usage: memoize(f) and returns: helper, memo