The presentation file is nothing special; it is a plain text file with a far-fetched extension. In this case, your file name should be new.html.erb in the reference location. You can simply make it an empty text file and put your code in it.
The file name is displayed by convention - the first part (new) is the action, the second part is the type that will display (html), and the third part is the rendering mechanism that is used (erb).
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