code: def document_store_class(
      name: str,
      documents: Optional[List[Document]] = None,
      documents_count: Optional[int] = None,
      bases: Optional[Tuple[type, ...]] = None,
      extra_fields: Optional[Dict[str, Any]] = None,
  ) -> Type[DocumentStore]:
      """
      Utility function to create a DocumentStore class with the given name and list of documents.
  
      If `documents` is set but `documents_count` is not, `documents_count` will be the length
      of `documents`.
      If both are set explicitly they don't influence each other.
  
      `write_documents()` and `delete_documents()` are no-op.
      You can override them using `extra_fields`.
  
      ### Usage
  
      Create a DocumentStore class that returns no documents:
      ```python
      MyFakeStore = document_store_class("MyFakeComponent")
      document_store = MyFakeStore()
      assert document_store.documents_count() == 0
      assert document_store.filter_documents() == []
      ```
  
      Create a DocumentStore class that returns a single document:
      ```python
      doc = Document(id="fake_id", text="Fake content")
      MyFakeStore = document_store_class("MyFakeComponent", documents=[doc])
      document_store = MyFakeStore()
      assert document_store.documents_count() == 1
      assert document_store.filter_documents() == [doc]
      ```
  
      Create a DocumentStore class that returns no document but returns a custom count:
      ```python
      MyFakeStore = document_store_class("MyFakeComponent", documents_count=100)
      document_store = MyFakeStore()
      assert document_store.documents_count() == 100
      assert document_store.filter_documents() == []
      ```
  
      Create a DocumentStore class that returns a document and a custom count:
      ```python
      doc = Document(id="fake_id", text="Fake content")
      MyFakeStore = document_store_class("MyFakeComponent", documents=[doc], documents_count=100)
      document_store = MyFakeStore()
      assert document_store.documents_count() == 100
      assert document_store.filter_documents() == [doc]
      ```
  
      Create a DocumentStore class with a custom base class:
      ```python
      MyFakeStore = document_store_class(
          "MyFakeStore",
          bases=(MyBaseClass,)
      )
      document_store = MyFakeStore()
      assert isinstance(store, MyBaseClass)
      ```
  
      Create a DocumentStore class with an extra field `my_field`:
      ```python
      MyFakeStore = document_store_class(
          "MyFakeStore",
          extra_fields={"my_field": 10}
      )
      document_store = MyFakeStore()
      assert document_store.my_field == 10
      ```
      """
      if documents is not None and documents_count is None:
          documents_count = len(documents)
      elif documents_count is None:
          documents_count = 0
  
      def count_documents(self) -> Union[int, None]:
          return documents_count
  
      def filter_documents(
          self, filters: Optional[Dict[str, Any]] = None
      ) -> List[Document]:
          if documents is not None:
              return documents
          return []
  
      def write_documents(
          self,
          documents: List[Document],
          policy: DuplicatePolicy = DuplicatePolicy.FAIL,
      ) -> None:
          return
  
      def delete_documents(self, document_ids: List[str]) -> None:
          return
  
      def to_dict(self) -> Dict[str, Any]:
          return default_to_dict(self)
  
      fields = {
          "count_documents": count_documents,
          "filter_documents": filter_documents,
          "write_documents": write_documents,
          "delete_documents": delete_documents,
          "to_dict": to_dict,
          "from_dict": classmethod(default_from_dict),
      }
  
      if extra_fields is not None:
          fields = {**fields, **extra_fields}
  
      if bases is None:
          bases = (object,)
  
      cls = type(name, bases, fields)
      return cls
  
imports: from typing import Any, Dict, Optional, Tuple, Type, List, Union
  from haystack.dataclasses import Document
  from haystack.document_stores.types import DocumentStore, DuplicatePolicy
  from haystack.core.component import component, Component
  from haystack.core.serialization import default_to_dict, default_from_dict
label_desc: Use image node_id 1 for calling a global function with example usage: document_store_class(name, documents, documents_count, bases, extra_fields) and returns: cls, documents_count, list, default_to_dict, documents