code: def code_block(self, buf, language=""):
      return join(
          [
              "```",
              language,
              "\n",
              self.list_depth(),
              buf,
              "\n",
              self.list_depth(),
              "```\n",
          ]
      )
  
imports: import glob
  import os
  import sys
  import carla
label_desc: Use image node_id 13 for calling the MarkdownFile obj's underlying member method code with example usage: obj.code_block(buf, language) and returns: join