Merge pull request #377 yt export improvements from KAndrey/type-v3-flag-pr

Author: rekby

ydb/export.py

@@ -83,6 +83,7 @@ def __init__(self):
         self.host = None
         self.port = None
         self.uid = None
+        self.use_type_v3 = False
 
     def with_port(self, port):
         self.port = port
@@ -118,6 +119,10 @@ def with_items(self, *items):
         self.items.extend(items)
         return self
 
+    def with_use_type_v3(self, use_type_v3):
+        self.use_type_v3 = use_type_v3
+        return self
+
 
 class ExportToS3Settings(s_impl.BaseRequestSettings):
     def __init__(self):
@@ -192,6 +197,9 @@ def _export_to_yt_request_factory(settings):
     if settings.port:
         request.settings.port = settings.port
 
+    if settings.use_type_v3:
+        request.settings.use_type_v3 = settings.use_type_v3
+
     for source_path, destination_path in settings.items:
         request.settings.items.add(source_path=source_path, destination_path=destination_path)