class_docstr: Test retrieval methods for BB2 with FiD.
class_docstr_tok: ["Test","retrieval","methods","for","BB2","with","FiD","."]
code: def test_retrieval_all(self):
      _test_bb2_fid(KnowledgeAccessMethod.ALL)
  
imports: import copy
  import torch.cuda
  import unittest
  from parlai.core.agents import create_agent
  import parlai.utils.testing
label_desc: Use image node_id 1 for calling the TestBB2Fid obj's underlying member method code with example usage: obj.test_retrieval_all() without return types