Add examples for adding extra TLVs to a spontaneous payment

snippets/python/main.py

@@ -7,7 +7,7 @@ from src.connecting_lsp import get_lsp_info, connect_lsp
 from src.buy_btc import buy
 from src.send_onchain import get_current_fees, list_current_fees, check_reverse_swap_status, start_reverse_swap
 from src.static_channel_backup import retrieve_backup_files
-from src.send_spontaneous_payment import send_spontaneous_payment
+from src.send_spontaneous_payment import send_spontaneous_payment, send_spontaneous_payment_with_tlvs
 from src.receive_payment import receive_payment
 from src.receive_onchain import generate_receive_onchain_address, get_in_progress_swap, list_refundables, execute_refund, get_channel_opening_fees
 from src.fiat_currencies import list_supported_fiat_currencies, get_current_rates
@@ -73,6 +73,7 @@ def main():
 
    #send spontaneous payment
    send_spontaneous_payment(sdk_services)
+   send_spontaneous_payment_with_tlvs(sdk_services)
 
    # fiat currencies
    list_supported_fiat_currencies(sdk_services)

snippets/python/src/send_spontaneous_payment.py

@@ -7,10 +7,25 @@ def send_spontaneous_payment(sdk_services):
     node_id = "..."
     amount_msat = 300000
     try:
-        req = breez_sdk.SendSpontaneousPaymentRequest(node_id,amount_msat)
+        req = breez_sdk.SendSpontaneousPaymentRequest(node_id, amount_msat)
         result = sdk_services.send_spontaneous_payment(req)
         # ANCHOR: send-spontaneous-payment
         return result
+    except Exception as error:
+        print(error)
+        raise
+
+
+def send_spontaneous_payment_with_tlvs(sdk_services):
+    # ANCHOR: send-spontaneous-payment-with-tlvs
+    node_id = "..."
+    amount_msat = 300000
+    extra_tlvs = [breez_sdk.TlvEntry(34349334, str.encode("Hello world!"))]
+    try:
+        req = breez_sdk.SendSpontaneousPaymentRequest(node_id, amount_msat, extra_tlvs)
+        result = sdk_services.send_spontaneous_payment(req)
+        # ANCHOR: send-spontaneous-payment-with-tlvs
+        return result
     except Exception as error:
         print(error)
         raise