code: func (command *PythonCapnp) Execute() error {
  	var apiDef raml.APIDefinition
  
  	log.Debug("Generating python classes with capnp conversion")
  
  	err := raml.ParseFile(command.RAMLFile, &apiDef)
  	if err != nil {
  		return err
  	}
  	return codegen.GeneratePythonCapnp(&apiDef, command.Dir)
  }
docs: //Execute generates a client from a RAML specification