diff --git a/adafruit_hid/keycode.py b/adafruit_hid/keycode.py
index 14ab81e..a4531f4 100644
--- a/adafruit_hid/keycode.py
+++ b/adafruit_hid/keycode.py
@@ -255,6 +255,17 @@ class Keycode:
     F19 = 0x6E
     """Function key F19 (Mac)"""
 
+    F20 = 0x6F
+    """Function key F20"""
+    F21 = 0x70
+    """Function key F21"""
+    F22 = 0x71
+    """Function key F22"""
+    F23 = 0x72
+    """Function key F23"""
+    F24 = 0x73
+    """Function key F24"""
+
     LEFT_CONTROL = 0xE0
     """Control modifier left of the spacebar"""
     CONTROL = LEFT_CONTROL
diff --git a/examples/gamepad.py b/examples/gamepad.py
index ff496c3..01a9653 100644
--- a/examples/gamepad.py
+++ b/examples/gamepad.py
@@ -65,13 +65,13 @@ def __init__(self, devices):
             self.reset_all()
 
     def press_buttons(self, *buttons):
-        """Press and hold the given buttons. """
+        """Press and hold the given buttons."""
         for button in buttons:
             self._buttons_state |= 1 << self._validate_button_number(button) - 1
         self._send()
 
     def release_buttons(self, *buttons):
-        """Release the given buttons. """
+        """Release the given buttons."""
         for button in buttons:
             self._buttons_state &= ~(1 << self._validate_button_number(button) - 1)
         self._send()