title: How to mask DLL
body: <p>Let's say I have a DLL that provides math calculus functions. To use it, I include the <code>using Colhq.Math.Basic;</code> namespace.</p>
  
  <p>How could I use it by adding a statement like <code>using Blala.Functions.Math;</code>?</p>
  
  <p>How could I use everything (methods, enums, etc.) from a DLL by using a different namespace?
  Is there a one-shot way to wrap or mask a DLL?</p>