feat: add output method on transaction type

bdk-jvm/lib/src/test/kotlin/org/bitcoindevkit/LiveTransactionTests.kt

@@ -0,0 +1,39 @@
+package org.bitcoindevkit
+
+import kotlin.test.Test
+
+private const val SIGNET_ESPLORA_URL = "http://signet.bitcoindevkit.net"
+private const val TESTNET_ESPLORA_URL = "https://esplora.testnet.kuutamo.cloud"
+
+class LiveTransactionTests {
+    @Test
+    fun testSyncedBalance() {
+        val descriptor: Descriptor = Descriptor(
+            "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)",
+            Network.SIGNET
+        )
+        val wallet: Wallet = Wallet.newNoPersist(descriptor, null, Network.SIGNET)
+        val esploraClient: EsploraClient = EsploraClient(SIGNET_ESPLORA_URL)
+        val fullScanRequest: FullScanRequest = wallet.startFullScan()
+        val update = esploraClient.fullScan(fullScanRequest, 10uL, 1uL)
+        wallet.applyUpdate(update)
+        wallet.commit()
+        println("Wallet balance: ${wallet.getBalance().total.toSat()}")
+
+        assert(wallet.getBalance().total.toSat() > 0uL) {
+            "Wallet balance must be greater than 0! Please send funds to ${wallet.revealNextAddress(KeychainKind.EXTERNAL).address.asString()} and try again."
+        }
+
+        val transaction: Transaction = wallet.transactions().first().transaction
+        println("First transaction:")
+        println("Txid: ${transaction.txid()}")
+        println("Version: ${transaction.version()}")
+        println("Total size: ${transaction.totalSize()}")
+        println("Vsize: ${transaction.vsize()}")
+        println("Weight: ${transaction.weight()}")
+        println("Coinbase transaction: ${transaction.isCoinbase()}")
+        println("Is explicitly RBF: ${transaction.isExplicitlyRbf()}")
+        println("Inputs: ${transaction.input()}")
+        println("Outputs: ${transaction.output()}")
+    }
+}