Update initialize.py

initialize.py

@@ -6,6 +6,12 @@ from haystack.components.builders import PromptBuilder
 from haystack.components.generators import HuggingFaceTGIGenerator
 from haystack import Pipeline
 
+import sys
+import subprocess
+
+def install(name):
+    subprocess.call([sys.executable, '-m', 'pip', 'install', name])
+
 def init_doc_store(path, files):
     docs = []
     for file in files: