code: def render(self):
          
          context = self.context
          if 'app' not in context:
              context['app'] = self.application.name
          temp_dir = self.temp_dir
          templates_root = self.blueprint.templates_directory
          for root, dirs, files in os.walk(templates_root):
              for directory in dirs:
                  directory = os.path.join(root, directory)
                  directory = render_from_string(directory, context)
                  directory = directory.replace(templates_root, temp_dir, 1)
                  os.mkdir(directory)
              for file in files:
                  full_file = os.path.join(root, file)
                  stat = os.stat(full_file)
                  content = render_from_file(full_file, context)
                  full_file = strip_extension(
                      render_from_string(full_file, context))
                  full_file = full_file.replace(templates_root, temp_dir, 1)
                  with open(full_file, 'w') as f:
                      f.write(content)
                  os.chmod(full_file, stat.st_mode)
docs: Render the blueprint into a temp directory using the context.