code: def test_from_dict_nonexisting_docstore(self):
      data = {
          "type": "haystack.components.retrievers.in_memory.bm25_retriever.InMemoryBM25Retriever",
          "init_parameters": {
              "document_store": {
                  "type": "Nonexisting.Docstore",
                  "init_parameters": {},
              }
          },
      }
      with pytest.raises(DeserializationError):
          InMemoryBM25Retriever.from_dict(data)
  
imports: from typing import Dict, Any
  import pytest
  from haystack import Pipeline, DeserializationError
  from haystack.testing.factory import document_store_class
  from haystack.components.retrievers.in_memory import InMemoryBM25Retriever
  from haystack.dataclasses import Document
  from haystack.document_stores.in_memory import InMemoryDocumentStore
label_desc: Use image node_id 9 for calling the TestMemoryBM25Retriever obj's underlying member method code with example usage: obj.test_from_dict_nonexisting_docstore() without return types