[twitter] add 'transform' option

docs/configuration.rst

@@ -2839,6 +2839,16 @@ Description
     `syndication <extractor.twitter.syndication_>`__ API.
 
 
+extractor.twitter.transform
+---------------------------
+Type
+    ``bool``
+Default
+    ``true``
+Description
+    Transform Tweet and User metadata into a simpler, uniform format.
+
+
 extractor.twitter.size
 ----------------------
 Type

gallery_dl/extractor/twitter.py

@@ -41,6 +41,10 @@ class TwitterExtractor(Extractor):
         self.cards = self.config("cards", False)
         self.cards_blacklist = self.config("cards-blacklist")
         self.syndication = self.config("syndication")
+
+        if not self.config("transform", True):
+            self._transform_user = util.identity
+            self._transform_tweet = util.identity
         self._user = self._user_obj = None
         self._user_cache = {}
         self._init_sizes()