code: public function make()
      {
          $content = $this->getManagerStubContent();
  
          $content = str_replace('@providers', $this->stringify('providers'), $content);
  
          $content = str_replace('@aliases', $this->stringify('aliases'), $content);
  
          $this->filesystem->put($this->getManagerFilePath(), $content);
  
          return true;
      }
docs: Make config/manager.php file.
  
  @return bool