let label = (attr.isKey ? '#' : '') + attr.name;
mcdDot += '"' + name + '_' + attr.name + '" [shape=ellipse, label="' + label + '"];\n';
let attrName = name + '_' + attr.name;
let label = (attr.isKey ? '#' : '') + attr.name;
mcdDot += '"' + name + '_' + attr.name + '" [shape=ellipse, label="' + label + '"];\n';
let attrName = name + '_' + attr.name;