nixos/test-driver: fix type hint for send_chars

1 files changed, 1 insertions, 1 deletions

diff --git a/nixos/lib/test-driver/test_driver/machine.py b/nixos/lib/test-driver/test_driver/machine.py
index 035e3ffe89731..3ff3cf5645f82 100644
--- a/nixos/lib/test-driver/test_driver/machine.py
+++ b/nixos/lib/test-driver/test_driver/machine.py
@@ -682,7 +682,7 @@ class Machine:
         with self.nested("waiting for {} to appear on tty {}".format(regexp, tty)):
             retry(tty_matches)
 
-    def send_chars(self, chars: List[str]) -> None:
+    def send_chars(self, chars: str) -> None:
         with self.nested("sending keys ‘{}‘".format(chars)):
             for char in chars:
                 self.send_key(char)