#NEWLINE# def __init__( self , monitor , batch_size ) : #NEWLINE# #INDENT# 'Constructor.\n\n    Args:\n      monitor: instance of ProgressMonitor that is watching the checksum job.\n      batch_size: Number of rows to scan in a single checksum query.\n    ' #NEWLINE# self . _monitor = monitor #NEWLINE# self . _batch_size = batch_size