Make discord.Object hashable.

discord/object.py

@@ -24,8 +24,9 @@ DEALINGS IN THE SOFTWARE.
 """
 
 from . import utils
+from .mixins import Hashable
 
-class Object:
+class Object(Hashable):
     """Represents a generic Discord object.
 
     The purpose of this class is to allow you to create 'miniature'
@@ -39,6 +40,20 @@ class Object:
     receive this class rather than the actual data class. These cases are
     extremely rare.
 
+    .. container:: operations
+
+        .. describe:: x == y
+
+            Checks if two objects are equal.
+
+        .. describe:: x != y
+
+            Checks if two objects are not equal.
+
+        .. describe:: hash(x)
+
+            Returns the object's hash.
+
     Attributes
     -----------
     id : str