[cleanup] Sort imports

Using https://github.com/PyCQA/isort

    isort -m VERTICAL_HANGING_INDENT --py 36 -l 80 --rr -n --tc .

yt_dlp/extractor/abematv.py

@@ -1,35 +1,31 @@
-import io
-import json
-import time
+import base64
+import binascii
 import hashlib
 import hmac
+import io
+import json
 import re
 import struct
+import time
 import urllib.response
 import uuid
-from base64 import urlsafe_b64encode
-from binascii import unhexlify
 
 from .common import InfoExtractor
 from ..aes import aes_ecb_decrypt
-from ..compat import (
-    compat_urllib_parse_urlparse,
-    compat_urllib_request,
-)
+from ..compat import compat_urllib_parse_urlparse, compat_urllib_request
 from ..utils import (
     ExtractorError,
+    bytes_to_intlist,
     decode_base,
     int_or_none,
+    intlist_to_bytes,
     request_to_url,
     time_seconds,
-    update_url_query,
     traverse_obj,
-    intlist_to_bytes,
-    bytes_to_intlist,
+    update_url_query,
     urljoin,
 )
 
-
 # NOTE: network handler related code is temporary thing until network stack overhaul PRs are merged (#2861/#2862)
 
 def add_opener(ydl, handler):
@@ -130,7 +126,7 @@ class AbemaLicenseHandler(compat_urllib_request.BaseHandler):
         encvideokey = bytes_to_intlist(struct.pack('>QQ', res >> 64, res & 0xffffffffffffffff))
 
         h = hmac.new(
-            unhexlify(self.HKEY),
+            binascii.unhexlify(self.HKEY),
             (license_response['cid'] + self.ie._DEVICE_ID).encode('utf-8'),
             digestmod=hashlib.sha256)
         enckey = bytes_to_intlist(h.digest())
@@ -238,7 +234,7 @@ class AbemaTVIE(AbemaTVBaseIE):
 
         def mix_twist(nonce):
             nonlocal tmp
-            mix_once(urlsafe_b64encode(tmp).rstrip(b'=') + nonce)
+            mix_once(base64.urlsafe_b64encode(tmp).rstrip(b'=') + nonce)
 
         mix_once(self._SECRETKEY)
         mix_tmp(time_struct.tm_mon)
@@ -247,7 +243,7 @@ class AbemaTVIE(AbemaTVBaseIE):
         mix_twist(ts_1hour_str)
         mix_tmp(time_struct.tm_hour % 5)
 
-        return urlsafe_b64encode(tmp).rstrip(b'=').decode('utf-8')
+        return base64.urlsafe_b64encode(tmp).rstrip(b'=').decode('utf-8')
 
     def _get_device_token(self):
         if self._USERTOKEN: