### Question:
WalletTxnResponse { public WalletTxnResponse walletTxn(WalletTxn walletTxn) { this.walletTxn = walletTxn; return this; }  WalletTxnResponse walletTxn(WalletTxn walletTxn); @ApiModelProperty(required = true, value = "") WalletTxn getWalletTxn(); void setWalletTxn(WalletTxn walletTxn); @Override boolean equals(java.lang.Object o); @Override int hashCode(); @Override String toString(); static final String SERIALIZED_NAME_WALLET_TXN; }### Answer:
@Test public void walletTxnTest() { }