# templates/demo/_layout.txt.erb
This is the header

<%= yield %>

This is the footer

# templates/demo/_sub_example.txt.erb
Hello from the sub template!

The value of argx is: <%= options[:argx] %>

# templates/demo/example1.txt.erb
% render "layout.txt" do

Hello from template example 1

10 + 10 = 20

% # This is a Ruby comment, it will not appear in the output

% 10.times do |i|
This is loop <%= i %>
% end

% if 10 == 20
This is the true case
% else 
This is the false case
% end 

<%= render "templates/demo/sub_example.txt", argx: 100 %>

% dut.atd0.regs.each do |name, reg|
<%= name %>
% end

% end

# templates/demo/example2.txt.erb
<%= render "templates/demo/sub_example.txt", argx: 200 %>