title: Typescript file-naming conventions
body: <p>I'm looking for the Typescript file-naming conventions, specifically for a file which stores only types and interfaces.</p>
  
  <p>Now, I've found a couple of Typescript Coding Convention projects on GitHub, and they even refer to file-naming conventions <a href="https://github.com/basarat/typescript-book/blob/master/docs/styleguide/styleguide.md#filename" rel="noreferrer">here</a> and <a href="https://github.com/unional/typescript-guidelines/blob/master/pages/default/draft/naming-conventions.md#file-naming" rel="noreferrer">here</a>. But none of them refers to the specific file that I'm interested in, namely - a file which stores only types and interfaces.</p>
  
  <p>For all it matters, within my project this file serves for both internal usage and external API.</p>