Update __init__.py

Author: yisongfu

basicts/utils/__init__.py

@@ -1,5 +1,6 @@
 from .config import get_dataset_name
 from .dataset import InfiniteGenerator
+from .meter_pool import MeterPool
 from .misc import check_nan_inf, clock
 from .misc import partial_func as partial
 from .misc import remove_nan_inf
@@ -12,4 +13,4 @@
            'remove_nan_inf', 'data_transformation_4_xformer',
            'partial', 'get_regular_settings',
            'load_dataset_data', 'load_dataset_desc',
-           'InfiniteGenerator', 'get_dataset_name']
+           'InfiniteGenerator', 'get_dataset_name', 'MeterPool']