add dice module, give it a !choose

dice/__init__.py

@@ -0,0 +1,9 @@
+"""Roll dice and do other randomization type operations."""
+from bot import hitomi
+from dice import lib
+
+
+@hitomi.command()
+async def choose(*choices: str):
+    """Randomly select one item from multiple choices."""
+    await hitomi.say(lib.choose(*choices))

dice/lib.py

@@ -0,0 +1,7 @@
+"""Functions for use in the dice module."""
+import random
+
+
+def choose(*choices: str):
+    """Randomly choose an item from the provided multiple choices."""
+    return random.choice(choices)

hitomi/settings.py

@@ -38,6 +38,7 @@ INSTALLED_APPS = [
     'django.contrib.messages',
     'django.contrib.staticfiles',
     'bot',
+    'dice',
 ]
 
 MIDDLEWARE = [