diff --git a/examples/async_extract_key_value_pdf.ipynb b/examples/async_extract_key_value_pdf.ipynb
index d65eb05..132cf6b 100644
--- a/examples/async_extract_key_value_pdf.ipynb
+++ b/examples/async_extract_key_value_pdf.ipynb
@@ -203,6 +203,19 @@
     "                \"date\": \"date of the invoice\",\n",
     "            }\n",
     "\n",
+    "# If you want to extract line items from an invoice you can follow this structure\n",
+    "extract_instruction = {\n",
+    "                 \"line_items\": {\n",
+    "                                  \"description\": \"Item description\",\n",
+    "                                  \"quantity\": \"Item quantity as integer\",\n",
+    "                                  \"unit_prices\": \"Item unit price as a decimal number\",\n",
+    "                                  \"net_amounts\": \"Item net amount before tax as a decimal number\",\n",
+    "                                  \"tax_rate\": \"Item tax rate percentage as a decimal number\",\n",
+    "                                  \"tax_amount\": \"Item tax amount charged as a decimal number\",\n",
+    "                                  \"total_amount\": \"Item total amount including tax as a decimal number\",\n",
+    "                        }\n",
+    "            }\n",
+    "\n",
     "# extract returns a tuple containing the markdown as a string and total time\n",
     "file_id = ap.async_extract_key_value(example_local_file, extract_instruction)\n",
     "\n",