code: function getJsonBufferPadded(json) {
      let string = JSON.stringify(json);
  
      const boundary = 4;
      const byteLength = Buffer.byteLength(string);
      const remainder = byteLength % boundary;
      const padding = (remainder === 0) ? 0 : boundary - remainder;
      let whitespace = '';
      for (let i = 0; i < padding; ++i) {
          whitespace += ' ';
      }
      string += whitespace;
  
      return Buffer.from(string);
  }
docs: Convert the JSON object to a padded buffer.
  
  Pad the JSON with extra whitespace to fit the next 4-byte boundary. This ensures proper alignment
  for the section that follows.
  
  @param {Object} [json] The JSON object.
  @returns {Buffer} The padded JSON buffer.
  
  @private