def begin_batch(self):
self.is_batch = True<EOL>self.batch_table = '<STR_LIT>'<EOL>self.batch_partition_key = '<STR_LIT>'<EOL>self.batch_row_keys = []<EOL>self.batch_requests = []<EOL>
Starts the batch operation. Intializes the batch variables

is_batch:
    batch operation flag.
batch_table:
    the table name of the batch operation
batch_partition_key:
    the PartitionKey of the batch requests.
batch_row_keys:
    the RowKey list of adding requests.
batch_requests:
    the list of the requests.