minor refactor

src/telephone.py

@@ -20,9 +20,6 @@ def generate_address(ctx):
 channel_calls_cache = {}
 
 def setup(bot):
-    async def server_mod_check(ctx):
-        return ctx.author.permissions_in(ctx.channel).manage_channels or (await bot.is_owner(ctx.author))
-
     @bot.group(name="apiotelephone", aliases=["tel", "tele", "telephone", "apiotel"], brief="ApioTelephone lets you 'call' other servers.", help=f"""
     Call other (participating) servers with ApioTelephone! To configure a channel for telephony, do `{bot.command_prefix}tel setup` (requires Manage Channels).
     It's recommended that you give the bot Manage Webhooks permissions in this channel so that it can use webhook calls mode.
@@ -78,7 +75,7 @@ def setup(bot):
         await asyncio.gather(*map(send_to, calls))
 
     @telephone.command()
-    @commands.check(server_mod_check)
+    @commands.check(util.server_mod_check(bot))
     async def setup(ctx):
         num = generate_address(ctx)
         await ctx.send(f"Your address is {num}.")

src/util.py

@@ -224,4 +224,9 @@ def unlyric(text):
 def gen_codeblock(content):
     return "```\n" + content.replace("```", "\\`\\`\\`")[:1900] + "\n```"
 
-def json_encode(x): return json.dumps(x, separators=(',', ':'))
+def json_encode(x): return json.dumps(x, separators=(',', ':'))
+
+def server_mod_check(bot):
+    async def check(ctx):
+        return ctx.author.permissions_in(ctx.channel).manage_channels or (await bot.is_owner(ctx.author))
+    return check