Create request class.

cogs/commands/request.py

@@ -0,0 +1,28 @@
+"""
+Contains commands to request things from admins.
+"""
+
+import nextcord
+from nextcord.ext import commands
+
+
+class RequestCog(commands.Cog, name="Request Commands"):
+    """
+    Class holds request commands.
+    """
+
+    @nextcord.slash_command()
+    async def request(self, interaction: nextcord.Interaction):
+        """
+        Parent slash command for help. Never called.
+        """
+
+    @request.subcommand(description="Request to change your Dakiny nickname")
+    async def change_username(self, interaction: nextcord.Interaction, new_username: str):
+        """
+        Sends a message to admins to request a username change.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command.
+            new_username(str): The username to change to.
+        """