text: class Config {
      constructor() {
          this.restServer = [
              { url: 'http://localhost:3000' },
              { url: 'http://localhost:4000' },
              { url: 'http://localhost:5000' },
          ];
          this.accountServer = [
              { url: 'http://localhost:3005' },
              { url: 'http://localhost:4005' },
              { url: 'http://localhost:5005' },
          ];
  
          this.accessTokens = {
              sellers: [
                  [
                      process.env.SELLER1_TOKEN1,
                      process.env.SELLER1_TOKEN2,
                      process.env.SELLER1_TOKEN3,
                  ],
                  [
                      process.env.SELLER2_TOKEN1,
                      process.env.SELLER2_TOKEN2,
                      process.env.SELLER2_TOKEN3,
                  ],
              ],
              buyers: [
                  [
                      process.env.BUYER1_TOKEN1,
                      process.env.BUYER1_TOKEN2,
                      process.env.BUYER1_TOKEN3,
                  ],
                  [
                      process.env.BUYER2_TOKEN1,
                      process.env.BUYER2_TOKEN2,
                      process.env.BUYER2_TOKEN3,
                  ],
              ],
          };
      }
  }
  
  module.exports = Config;
  