Update initialize.py

initialize.py

@@ -4,7 +4,7 @@ from haystack.document_stores.in_memory import InMemoryDocumentStore
 from haystack.components.retrievers.in_memory import InMemoryBM25Retriever
 from haystack.components.builders import PromptBuilder
 from haystack.components.generators import HuggingFaceTGIGenerator
-from haystack.pipeline import Pipeline
+from haystack import Pipeline
 
 def init_doc_store(path, files):
     docs = []