#NEWLINE# def elapsed_from_start( self , start ) : #NEWLINE# #INDENT# 'Time elapsed in the work chunk, given a start time\n        Ensures that the chunk work cannot start any earlier than\n        the specified start time.\n        :param start: the earliest time to calculate the elapsed time from\n        ' #NEWLINE# if ( self . start < start ) : #NEWLINE# #INDENT# return ( self . end - start ) #NEWLINE# #UNINDENT# else : #NEWLINE# #INDENT# return self . elapsed