#NEWLINE# @ property #NEWLINE# def missing( self ) : #NEWLINE# #INDENT# ls = self . cm . highest_committing_lockset #NEWLINE# if ( not ls ) : #NEWLINE# #INDENT# return [ ] #NEWLINE# #UNINDENT# max_height = ls . height #NEWLINE# if ( ( not max_height ) or ( max_height <= self . cm . head . number ) ) : #NEWLINE# #INDENT# return [ ] #NEWLINE# #UNINDENT# return range ( ( self . cm . head . number + 1 ) , ( max_height + 1 ) )