casts << {:long=>'xlabel', :short=>'X', :type=>'string', :mandatory=>false, :default=>xlabel, :allowed=>nil, :disallowed=>nil}
casts << {:long=>'ylabel', :short=>'Y', :type=>'string', :mandatory=>false, :default=>ylabel, :allowed=>nil, :disallowed=>nil}
casts << {:long=>'xlabel', :short=>'X', :type=>'string', :mandatory=>false, :default=>xlabel, :allowed=>nil, :disallowed=>nil}
casts << {:long=>'ylabel', :short=>'Y', :type=>'string', :mandatory=>false, :default=>ylabel, :allowed=>nil, :disallowed=>nil}