class_docstr: Test Pacer Agents.
class_docstr_tok: ["Test","Pacer","Agents","."]
code: def test_short_pacer(self):
      opt = {
          "model": "projects.light_whoami.agents.pacer:PacerPartialOnlyAgent",
          "model_file": TEST_TGA,
          "predictor_model_file": TEST_RPA_RERANKER,
          "pacer_n_tokens": 10,
          "pacer_frequency_ratio": 0.1,
          "beam_min_length": 10,
          **COMMON_OPT,
      }
      testing_utils.eval_model(opt, skip_test=True)
      opt = {
          "model": "projects.light_whoami.agents.pacer:PacerAgent",
          "model_file": TEST_TGA,
          "predictor_model_file": TEST_RPA_RERANKER,
          "pacer_n_tokens": 10,
          "pacer_frequency_ratio": 0.1,
          "beam_min_length": 10,
          **COMMON_OPT,
      }
      testing_utils.eval_model(opt, skip_test=True)
  
imports: import unittest
  from parlai.core.message import Message
  from parlai.core.params import ParlaiParser, Opt
  from parlai.core.torch_ranker_agent import TorchRankerAgent
  import parlai.utils.testing
  from projects.light_whoami.agents import RPA_RERANKER, RPA_RERANKER_AUTO_EXPANDED, VANILLA_128, VANILLA_1024, UL_128, UL_1024, MULTIOBJECTIVE, PROFILE_EXPANDED_128, PROFILE_EXPANDED_1024, AUTO_EXPANDED_1024, EXPANDED_AND_MULTIOBJECTIVE_1024, TEST_RPA_RERANKER
label_desc: Use image node_id 3 for calling the TestPacer obj's underlying member method code with example usage: obj.test_short_pacer() without return types