code: def filter_by_keys(
      d: Mapping[K, V], predicate: Callable[[K], bool]
  ) -> dict[K, V]:
      """Filter to keys matching predicate."""
      return {k: v for k, v in d.items() if predicate(k)}
  
imports: from collections.abc import Callable, Collection, Iterable, Iterator, Mapping, Sequence
  import itertools
  import queue
  import threading
  import time
  from typing import Any, Optional, TypeVar, Union
  import uuid
  from lit_nlp.api import types
  import numpy
label_desc: Use image node_id 4 for calling a global function with example usage: filter_by_keys(d, predicate) and returns: unknown