code: public static Configuration createConfiguration(UnderFileSystemConfiguration conf) {
      Configuration wasbConf = HdfsUnderFileSystem.createConfiguration(conf);
      for (Map.Entry<String, String> entry : conf.toMap().entrySet()) {
        String key = entry.getKey();
        String value = entry.getValue();
        if (PropertyKey.Template.UNDERFS_AZURE_ACCOUNT_KEY.matches(key)) {
          wasbConf.set(key, value);
        }
      }
      wasbConf.set("fs.AbstractFileSystem.wasb.impl", "org.apache.hadoop.fs.azure.Wasb");
      wasbConf.set("fs.wasb.impl", "org.apache.hadoop.fs.azure.NativeAzureFileSystem");
      return wasbConf;
    }
docs: Prepares the configuration for this Wasb as an HDFS configuration.
  
  @param conf the configuration for this UFS
  @return the created configuration