railties/lib/rails/generators/rails/plugin/templates/lib/%namespaced_name%.rb.tt
require "<%= namespaced_name %>/version"
<% if engine? -%>
require "<%= namespaced_name %>/engine"
<% else -%>
require "<%= namespaced_name %>/railtie"
<% end -%>
<%= wrap_in_modules "# Your code goes here..." %>