added sign() to get v,r,s

src/index.js

@@ -8,7 +8,7 @@ const ObservableStore = require('obs-store')
 const encryptor = require('browser-passworder')
 const { normalize: normalizeAddress } = require('eth-sig-util')
 
-const { Common, Hardfork } =require('@ethereumjs/common')
+const { Common, Hardfork } = require('@ethereumjs/common')
 const { FeeMarketEIP1559Transaction } = require('@ethereumjs/tx');
 const { bufferToHex } = require('ethereumjs-util')
 
@@ -283,6 +283,25 @@ class KeyringController extends EventEmitter {
         return signedTx
     }
 
+    /**
+     * Sign Transaction or Message to get v,r,s
+     *
+     * Signs a transaction object.
+     *
+     * @param {Object} rawTx - The transaction or message to sign.
+     * @param {Object} privateKey - The private key of the account.
+     * @param {Object} web3 - web3 object.
+     * @returns {Object} The signed transaction object.
+     */
+    async sign(rawTx, privateKey, web3) {
+        let signedTx;
+        if (typeof rawTx === 'string')
+            signedTx = await web3.eth.accounts.sign(rawTx, privateKey);
+        else
+            signedTx = await web3.eth.accounts.signTransaction({ ...rawTx, gas: await web3.eth.estimateGas(rawTx) }, privateKey)
+        return signedTx
+    }
+
 
     /**
      * Sign Message
@@ -548,7 +567,7 @@ class KeyringController extends EventEmitter {
             fees: fees
         }
     }
-a
+    a
 }
 
 const getBalance = async (address, web3) => {