From c8937ed2aa59ca52bf4983b48f1e6bef76a49115 Mon Sep 17 00:00:00 2001
From: Rapptz <rapptz@gmail.com>
Date: Mon, 1 May 2017 22:36:22 -0400
Subject: [PATCH] [commands] Add is_nsfw check.

---
 discord/ext/commands/core.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/discord/ext/commands/core.py b/discord/ext/commands/core.py
index faac03d1d..fb1bce5aa 100644
--- a/discord/ext/commands/core.py
+++ b/discord/ext/commands/core.py
@@ -1122,6 +1122,12 @@ def is_owner():
 
     return check(predicate)
 
+def is_nsfw():
+    """A :func:`check` that checks if the channel is a NSFW channel."""
+    def pred(ctx):
+        return isinstance(ctx.channel, discord.TextChannel) and ctx.channel.is_nsfw()
+    return check(pred)
+
 def cooldown(rate, per, type=BucketType.default):
     """A decorator that adds a cooldown to a :class:`Command`
     or its subclasses.