code: def test_to_dict_with_custom_init_parameters(self):
      mocked_docstore_class = document_store_class(
          "MockedDocumentStore"
      )
      component = CacheChecker(
          document_store=mocked_docstore_class(),
          cache_field="my_url_field",
      )
      data = component.to_dict()
      assert data == {
          "type": "haystack.components.caching.cache_checker.CacheChecker",
          "init_parameters": {
              "document_store": {
                  "type": "haystack.testing.factory.MockedDocumentStore",
                  "init_parameters": {},
              },
              "cache_field": "my_url_field",
          },
      }
  
file_path: haystack/test/components/caching/test_url_cache_checker.py
imports: import pytest
  from haystack import Document, DeserializationError
  from haystack.testing.factory import document_store_class
  from haystack.document_stores.in_memory import InMemoryDocumentStore
  from haystack.components.caching.cache_checker import CacheChecker
label_desc: Use image node_id 2 for calling the TestCacheChecker obj's underlying member method code with example usage: obj.test_to_dict_with_custom_init_parameters() without return types