title: OpenApi Generator typescript-axios Only interfaces output with typescript axios generator
body: <p>I started using the OpenApi Generator for TypeScript and Axios. It works really good! The only thing I'm wondering is, how can I generate classes instead of interfaces? </p>
  
  <p>With e.g. typescript-node I get all models as classes with optional Interfaces when setting the option withInterfaces. With typescript-axios I only get interfaces ... This is quite annoying ... can anyone help me out? </p>
  
  <p>I'm using version 1.0.12-4.3.0</p>
  
  <p>Thanks in advance,
  Andi</p>