title: How to create a static string at compile time
body: <p>I want to create a long <code>&amp;'static str</code> made of repeating sequences of chars, e.g. <code>abcabcabc...</code> </p>
  
  <p>Is there a way in Rust to do this via an expression, e.g. something like <code>long_str = 1000 * "abc"</code> in Python, or do I have to generate it in Python and copy/paste it in the Rust code?</p>