fix: export bigquery.HivePartitioningOptions (#1217)

Author: jli

google/cloud/bigquery/__init__.py

@@ -49,6 +49,7 @@
 from google.cloud.bigquery.external_config import CSVOptions
 from google.cloud.bigquery.external_config import GoogleSheetsOptions
 from google.cloud.bigquery.external_config import ExternalSourceFormat
+from google.cloud.bigquery.external_config import HivePartitioningOptions
 from google.cloud.bigquery.format_options import AvroOptions
 from google.cloud.bigquery.format_options import ParquetOptions
 from google.cloud.bigquery.job.base import SessionInfo
@@ -161,6 +162,7 @@
     "DmlStats",
     "CSVOptions",
     "GoogleSheetsOptions",
+    "HivePartitioningOptions",
     "ParquetOptions",
     "ScriptOptions",
     "TransactionInfo",

samples/snippets/create_table_external_hive_partitioned.py

@@ -50,7 +50,7 @@ def create_table_external_hive_partitioned(table_id: str) -> "bigquery.Table":
     external_config.autodetect = True
 
     # Configure partitioning options.
-    hive_partitioning_opts = bigquery.external_config.HivePartitioningOptions()
+    hive_partitioning_opts = bigquery.HivePartitioningOptions()
 
     # The layout of the files in here is compatible with the layout requirements for hive partitioning,
     # so we can add an optional Hive partitioning configuration to leverage the object paths for deriving