#NEWLINE# def validate_non_negative_integer_or_none( option , value ) : #NEWLINE# #INDENT# "Validate that 'value' is a positive integer or 0 or None.\n    " #NEWLINE# if ( value is None ) : #NEWLINE# #INDENT# return value #NEWLINE# #UNINDENT# return validate_non_negative_integer ( value , value )