How to use the emojibase-data/meta/groups.json.groups function in emojibase-data

const fs = require('fs');
const _ = require('lodash');
const csvWriter = require('csv-write-stream');
const csvParse = require('csv-parse/lib/sync');

const emojibaseData = require('emojibase-data/en/data.json');
const emojibaseGroups = require('emojibase-data/meta/groups.json');
const groups = emojibaseGroups.groups;
const subgroups = emojibaseGroups.subgroups;


// -- helper functions --
const loadCsv = (filePath) => {
  const content = fs.readFileSync(filePath, 'utf8');
  return csvParse(content, {columns: true});
}
const arrayToEmojiDict = (array) => {
  return array.reduce((o, a) => Object.assign(o, { [a.emoji]: a }), {});
}
const writeCsv = (data, filePath) => {
  const csvOut = csvWriter();
  csvOut.pipe(fs.createWriteStream(filePath));
  for (d of data) csvOut.write(d);
  csvOut.end();

})
    }
  }
  
  if (emojiGroupFound !== undefined) {
    emojiGroup.emojiList.push(emojiObj);
  } else {
    emojiGroup.emojiList.push(emojiObj);
    emojiArray.push(emojiGroup);
  }
}
const emojiArrayString = JSON.stringify(emojiArray);
console.log('emoji-data/emoji-all-groups.json');
fs.writeFileSync(`../emoji-data/emoji-all-groups.json`, emojiArrayString, 'utf-8'); 

const groupMeta = groupMetaData.groups;
for (let i = 0; i < emojiArray.length; i++) {
  let emojiGroupName = '';
  for (let group in groupMeta) {
    if(group == emojiArray[i].group) {
      emojiGroupName = groupMeta[group];
      break;
    } 
  }
  
  const emojiGroupString = JSON.stringify(emojiArray[i]);
  console.log(`emoji-data/emoji-group-${emojiGroupName}.json`);
  fs.writeFileSync(`../emoji-data/emoji-group-${emojiGroupName}.json`, emojiGroupString, 'utf-8'); 
}

emojiObj.skins.push({ 
          unicode: emojiPackLang[i].skins[j].unicode, 
          tags: emojiPackLang[i].skins[j].tags
        })
      }
    }
    
    if (emojiGroupFound !== undefined) {
      emojiGroup.emojiList.push(emojiObj);
    } else {
      emojiGroup.emojiList.push(emojiObj);
      emojiArray.push(emojiGroup);
    }
  }

  const groupMeta = groupMetaData.groups;
  for (let i = 0; i < emojiArray.length; i++) {
    if (i === 2) { continue; } 
    else {
      let emojiGroupName = '';
      for (let group in groupMeta) {
        if(group == emojiArray[i].group) {
          emojiGroupName = groupMeta[group];
          break;
        } 
      }
      
      const emojiGroupString = JSON.stringify(emojiArray[i]);
      console.log(`emoji-data/${lang}/emoji-group-${emojiGroupName}.json`);
      fs.writeFileSync(`./src/emoji-data/${lang}/emoji-group-${emojiGroupName}.json`, emojiGroupString, 'utf-8');
    }
  }