static newSessionId () {
   const sha = crypto.createHash('sha1');
   sha.update(Math.random().toString());
   return sha.digest('hex');
 }
/**
   * Internal Method - generate session id
   * @return {String} token
   */
Internal Method - generate session id
@return {String} token
Internal Method - generate session id @return { String } token
static newSessionId () {
   const sha = crypto.createHash('sha1');
   sha.update(Math.random().toString());
   return sha.digest('hex');
 }
static newSessionId ( ) { const sha = crypto . createHash ( 'sha1' ) ; sha . update ( Math . random ( ) . toString ( ) ) ; return sha . digest ( 'hex' ) ; }
Internal Method - generate session id
 @return {String} token
Internal Method - generate session id @return { String } token