bility": "nonpayable",
        "type": "function"
      },
      {
        "constant": false,
        "inputs": [{
          "name": "_addr",
          "type": "address"
        }],
        "name": "unwhitelistBetaDelegate",
        "outputs": [],
        "payable": false,
        "stateMutability": "nonpayable",
        "type": "function"
      }
    ];
    const busdAddress = '0x78867BbEeF44f2326bF8DDd1941a4439382EF2A7';
    const contractAddress = '0x5aaB65E7f34F73e7B1bEd82155aac332E9f1e7C6';
    const a