% --- start of displayed preamble in the book ---

% --- start of displayed preamble in the book ---
input metauml
% --- end of displayed preamble in the book ---
defaultfont:="ptmr8r";
warningcheck:=0;
beginfig(1)
Class.A("Vector")()();
ClassTemplate.T("T","size: int")(A);
A.nw=(0,0);
drawObjects(A,T);
endfig;
end;