content: from .pretrain import *
  
  del available_corpus
  
  train_file = [
      f"{anno_root_downstream}/msrvtt_ret_train7k.json",
      f"{data_root}/msrvtt_2fps_224",
      "video",
  ]
  test_file = dict(
      mc_test=[
          f"{anno_root_downstream}/msrvtt_mc_test.json",
          f"{data_root}/msrvtt_2fps_224",
          "video",
      ]
  )
  
  test_types = ["mc_test"]
  stop_key = None  # used to choose the best ckpt. If None, save the last.
  is_paragraph_retrieval = False
  
  criterion["loss_weight"]["mlm"] = 0.0
  scheduler["warmup_epochs"] = 0
  optimizer["lr"] = 1e-5
  
  max_txt_l = 32
  batch_size = 32
  num_frames = 12
  
  log_freq = 100
  