How to use the @ts-common/commonmark-to-markdown.markDownExToString function in @ts-common/commonmark-to-markdown

}
    );
    const latestProfileDir = Path.join(profilesDirectory, `definitions/`);
    const latestProfileLocation = Path.join(latestProfileDir, `${getFormattedDate()}-profile.md`);
    fs.writeFile(latestProfileLocation, latestProfileMarkDown);
    console.log(`Latest profile written at ${latestProfileLocation}`);
    
    // now get all the profile definitions and generate the readme.
    const definitions = fs.recursiveReaddir(latestProfileDir);
    const definitionsRelativePaths = [];
    for await (const file of definitions){
      const f = Path.parse(file);
      definitionsRelativePaths.push(`$(this-folder)/definitions/${f.base}`);
    }

    const profilesReadme = cm.markDownExToString(
      { 
        markDown: cm.createNode(
          "document",
          cm.createNode(
            'heading',
            cm.createText("Azure Profiles")
          ),
          cm.createNode(
            "block_quote",
            cm.createNode(
              "paragraph",
              cm.createText("see https://aka.ms/autorest")
            )
          ),
          cm.createNode(
            "block_quote",

}
      }     
    }
    
    if (!foundMultiApiReadmes){
      throw  `Couldn't find any readme.enable-multi-api.md files.`
    }

    const allPaths = await getPaths(specs);
    const crawlResult = getCrawlData(allPaths);
    const telemetryDir = Path.join(profilesDirectory, 'crawl-log.json')
    fs.writeFile(telemetryDir, JSON.stringify(crawlResult, null, 2));
    console.log(`Telemetry written at ${telemetryDir}`);
    
    const latestProfile = getLatestProfile(crawlResult);
    const latestProfileMarkDown = cm.markDownExToString(
      { 
        markDown: cm.createNode(
        "document",
        cm.createNode(
          "heading",
          cm.createText("Latest Azure Profile")
        ),
        cm.createNode(
          "block_quote",
          cm.createNode(
            "paragraph",
            cm.createText("see https://aka.ms/autorest")
          )
        ),
          cm.createCodeBlock(
            "yaml ",

"heading",
            cm.createText("Multi-API support for AutoRest v3 generators")
          ),
          cm.createNode(
            "block_quote",
            cm.createNode(
              "paragraph",
              cm.createText("see https://aka.ms/autorest")
            )
          ),
          cm.createCodeBlock(
            "yaml $(enable-multi-api)",
            yaml.dump({ "input-file": it.toArray(set) }, { lineWidth: 1000 })
          )
        )
        const x = cm.markDownExToString({ markDown: readMeMulti })
        fs.writeFile(path.join(f.dir, "readme.enable-multi-api.md"), x)
      }
    }
  } catch (e) {
    console.error(e)
  }
}