code: def pad1d(arr: list[T], min_len: int, pad_val: T) -> list[T]:
      """Pad a list to the target length."""
      return arr + [pad_val] * max(0, min_len - len(arr))
  
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 14 for calling a global function with example usage: pad1d(arr, min_len, pad_val) and returns: unknown