Fix examples (#189)

* Fix validator_get_example.py

* Add printing all response fields to validator_post_example.py

v4-client-py-v2/examples/validator_get_example.py

@@ -7,13 +7,6 @@
 
 async def test():
     node_client = await NodeClient.connect(TESTNET.node)
-    try:
-        result = await node_client.get_account_balances(TEST_ADDRESS)
-        print("Get Account Balances:")
-        print(result)
-    except Exception as e:
-        print("Error in get_account_balances:")
-        print(f"Error: {e}")
 
     try:
         account = await node_client.get_account(TEST_ADDRESS)
@@ -32,7 +25,7 @@ async def test():
         print(f"Error: {e}")
 
     try:
-        response = await node_client.get_account_balance(TEST_ADDRESS, "usdc")
+        response = await node_client.get_account_balance(TEST_ADDRESS, "adv4tnt")
         print("Get Account Balance:")
         print(response)
     except Exception as e:

v4-client-py-v2/examples/validator_post_example.py

@@ -4,12 +4,11 @@
 import time
 from pathlib import Path
 
-from dydx_v4_client import MAX_CLIENT_ID, NodeClient, Order, OrderFlags, Wallet
-from dydx_v4_client.indexer.rest.indexer_client import IndexerClient
+from dydx_v4_client import MAX_CLIENT_ID, NodeClient, Wallet
 from dydx_v4_client.network import TESTNET
-from dydx_v4_client.node.market import Market
 from dydx_v4_client.node.message import order, order_id
 from tests.conftest import DYDX_TEST_MNEMONIC, TEST_ADDRESS
+from google.protobuf.json_format import MessageToJson
 
 PERPETUAL_PAIR_BTC_USD = 0
 
@@ -51,7 +50,7 @@ async def test():
             ),
         )
         print("**Order Tx**")
-        print(place)
+        print(MessageToJson(place, always_print_fields_with_no_presence=True))
         # FIXME: Remove
         wallet.sequence += 1
         time.sleep(5)