code: def injectable(
          name=None, autocall=True, cache=False, cache_scope=_CS_FOREVER,
          memoize=False):
      
      def decorator(func):
          if name:
              n = name
          else:
              n = func.__name__
          add_injectable(
              n, func, autocall=autocall, cache=cache, cache_scope=cache_scope,
              memoize=memoize)
          return func
      return decorator
docs: Decorates functions that will be injected into other functions.
  
      Decorator version of `add_injectable`. Name defaults to
      name of function.
  
      The function's argument names and keyword argument values
      will be matched to registered variables when the function
      needs to be evaluated by Orca.
      The argument name "iter_var" may be used to have the current
      iteration variable injected.