Add support for PEXPIRETIME (#1861)

* add pexpiretime

* skip test

redis/commands/core.py

@@ -1800,6 +1800,15 @@ def pexpireat(self, name: KeyT, when: AbsExpiryT) -> ResponseT:
             when = int(time.mktime(when.timetuple())) * 1000 + ms
         return self.execute_command("PEXPIREAT", name, when)
 
+    def pexpiretime(self, key: str) -> int:
+        """
+        Returns the absolute Unix timestamp (since January 1, 1970) in milliseconds
+        at which the given key will expire.
+
+        For more information check https://redis.io/commands/pexpiretime
+        """
+        return self.execute_command("PEXPIRETIME", key)
+
     def psetex(
         self,
         name: KeyT,

tests/test_commands.py

@@ -1254,6 +1254,12 @@ def test_pexpireat_unixtime(self, r):
         assert r.pexpireat("a", expire_at_seconds) is True
         assert 0 < r.pttl("a") <= 61000
 
+    @skip_if_server_version_lt("7.0.0")
+    def test_pexpiretime(self, r):
+        r.set("a", "foo")
+        r.pexpireat("a", 33177117420000)
+        assert r.pexpiretime("a") == 33177117420000
+
     @skip_if_server_version_lt("2.6.0")
     def test_psetex(self, r):
         assert r.psetex("a", 1000, "value")