code: func License(dsl func()) {
  	license := new(design.LicenseDefinition)
  	if !dslengine.Execute(dsl, license) {
  		return
  	}
  	if a, ok := apiDefinition(); ok {
  		a.License = license
  	}
  }
docs: // License can be used in: API
  // License sets the API license information.