code: function multipartDataGenerator(method, data, headers) {
    var segno = (Math.round(Math.random() * 1e16) + Math.round(Math.random() * 1e16)).toString();
    headers['Content-Type'] = ('multipart/form-data; boundary=' + segno);
    var buffer = Buffer.alloc(0);
  
    function push(l) {
      var prevBuffer = buffer;
      var newBuffer = (l instanceof Buffer) ? l : Buffer.from(l);
      buffer = Buffer.alloc(prevBuffer.length + newBuffer.length + 2);
      prevBuffer.copy(buffer);
      newBuffer.copy(buffer, prevBuffer.length);
      buffer.write('\r\n', buffer.length - 2);
    }
  
    function q(s) {
      return '"' + s.replace(/"|"/g, '%22').replace(/\r\n|\r|\n/g, ' ') + '"';
    }
  
    for (var k in utils.flattenAndStringify(data)) {
      var v = data[k];
      push('--' + segno);
      if (v.hasOwnProperty('data')) {
        push('Content-Disposition: form-data; name=' + q(k) + '; filename=' + q(v.name || 'blob'));
        push('Content-Type: ' + (v.type || 'application/octet-stream'));
        push('');
        push(v.data);
      } else {
        push('Content-Disposition: form-data; name=' + q(k));
        push('');
        push(v);
      }
    }
    push('--' + segno + '--');
  
    return buffer;
  }
docs: Method for formatting HTTP body for the multipart/form-data specification Mostly taken from Fermata.js https://github.com/natevw/fermata/blob/5d9732a33d776ce925013a265935facd1626cc88/fermata.js#L315-L343