List emails using apps script

emails.js

/**
 * Creates and runs a search query on gmail.
 * @param {Object} [$0] - params.
 * @param {String} [$0.from=null] - email sender.
 * @param {String} [$0.to=null] - email receiver.
 * @param {String} [$0.label=null] - email label.
 * @param {String} [$0.period="id"] - period to search for.
 * @returns {{Assunto: "Subject of the thread", Emails: "Quantity of emails on the thread", lastMessageDate: "Date of the last message", lastMessageSender: "Contact that sent the last message on the thread"}}
 */
function searchEmails({from = null, to = null, label=null, period='1d'}){
  let query = `{
                ${from?`from:(${from})`:''} 
                ${to?`to:(${to})`:''} 
                ${label?`label:${label.replace(/([^\w\[\]])/g,"-")}`:''}
              } newer_than:${period}`;
  let getThread = (thread) => {
      let count = thread.getMessageCount();
      return {
                Assunto: thread.getFirstMessageSubject(), 
                Emails: count,
                lastMessageDate: thread.getLastMessageDate(),
                lastMessageSender: thread.getMessages()[count-1].getFrom()
              }
    };
   let threads = GmailApp.search(query);
   console.log(threads.length)
   let emails = threads.map(getThread);
   return emails;
}


function main(){
  let emails = searchEmails({
    label: "[Strike]/Banco Carrefour",
    period: "7d"
  })/**/
  console.log(emails);
}