updated totalUnderlying and ran linter

Author: aalavandhan

contracts/WAMPL.sol

@@ -32,7 +32,7 @@ contract WAMPL is ERC20, ERC20Permit {
     // Constants
 
     /// @dev The maximum wAMPL supply.
-    uint256 public constant MAX_WAMPL_SUPPLY = 10000000 * (10**18);  // 10 M
+    uint256 public constant MAX_WAMPL_SUPPLY = 10000000 * (10**18); // 10 M
 
     //--------------------------------------------------------------------------
     // Attributes
@@ -158,7 +158,7 @@ contract WAMPL is ERC20, ERC20Permit {
 
     /// @return The total AMPLs held by this contract.
     function totalUnderlying() external view returns (uint256) {
-        return _queryUnderlyingBalance();
+        return _wampleToAmple(totalSupply(), _queryAMPLSupply());
     }
 
     /// @param owner The account address.
@@ -187,11 +187,6 @@ contract WAMPL is ERC20, ERC20Permit {
         return IERC20(_ampl).totalSupply();
     }
 
-    /// @dev Queries the AMPL balance of this contract.
-    function _queryUnderlyingBalance() private view returns (uint256) {
-        return IERC20(_ampl).balanceOf(address(this));
-    }
-
     //--------------------------------------------------------------------------
     // Pure methods
 

hardhat.config.ts

@@ -21,19 +21,22 @@ export default {
     rinkeby: {
       url: `https://rinkeby.infura.io/v3/${process.env.INFURA_SECRET}`,
       accounts: {
-        mnemonic: process.env.DEV_MNEMONIC || Wallet.createRandom().mnemonic.phrase,
+        mnemonic:
+          process.env.DEV_MNEMONIC || Wallet.createRandom().mnemonic.phrase,
       },
     },
     kovan: {
       url: `https://kovan.infura.io/v3/${process.env.INFURA_SECRET}`,
       accounts: {
-        mnemonic: process.env.DEV_MNEMONIC || Wallet.createRandom().mnemonic.phrase,
+        mnemonic:
+          process.env.DEV_MNEMONIC || Wallet.createRandom().mnemonic.phrase,
       },
     },
     mainnet: {
       url: `https://mainnet.infura.io/v3/${process.env.INFURA_SECRET}`,
       accounts: {
-        mnemonic: process.env.PROD_MNEMONIC || Wallet.createRandom().mnemonic.phrase,
+        mnemonic:
+          process.env.PROD_MNEMONIC || Wallet.createRandom().mnemonic.phrase,
       },
     },
   },