Support of restart_identity on truncate operation

psqlextra/manager/manager.py

@@ -37,7 +37,10 @@ def __init__(self, *args, **kwargs):
             )
 
     def truncate(
-        self, cascade: bool = False, using: Optional[str] = None
+            self,
+            cascade: bool = False,
+            restart_identity: bool = False,
+            using: Optional[str] = None,
     ) -> None:
         """Truncates this model/table using the TRUNCATE statement.
 
@@ -51,14 +54,19 @@ def truncate(
                 False, an error will be raised if there
                 are rows in other tables referencing
                 the rows you're trying to delete.
+            restart_identity:
+                Automatically restart sequences owned by
+                columns of the truncated table(s).
         """
 
         connection = connections[using or "default"]
         table_name = connection.ops.quote_name(self.model._meta.db_table)
 
         with connection.cursor() as cursor:
-            sql = "TRUNCATE TABLE %s" % table_name
+            sql = f"TRUNCATE TABLE {table_name}"
             if cascade:
                 sql += " CASCADE"
+            if restart_identity:
+                sql += " RESTART IDENTITY"
 
             cursor.execute(sql)