Fixed Code to handle the new WS price_change logic

details about the changes:
https://docs.polymarket.com/developers/CLOB/websocket/market-channel-migration-guide

poly_data/data_processing.py

@@ -10,6 +10,7 @@ from poly_data.data_utils import set_position, set_order, update_positions
 
 def process_book_data(asset, json_data):
     global_state.all_data[asset] = {
+        'asset_id': json_data['asset_id'],  # token_id for the Yes token
         'bids': SortedDict(),
         'asks': SortedDict()
     }
@@ -18,6 +19,8 @@ def process_book_data(asset, json_data):
     global_state.all_data[asset]['asks'].update({float(entry['price']): float(entry['size']) for entry in json_data['asks']})
 
 def process_price_change(asset, side, price_level, new_size):
+    if asset_id != global_state.all_data[asset]['asset_id']:
+        return  # skip updates for the No token to prevent duplicated updates
     if side == 'bids':
         book = global_state.all_data[asset]['bids']
     else:
@@ -42,7 +45,7 @@ def process_data(json_datas, trade=True):
                 asyncio.create_task(perform_trade(asset))
                 
         elif event_type == 'price_change':
-            for data in json_data['changes']:
+            for data in json_data['price_changes']:
                 side = 'bids' if data['side'] == 'BUY' else 'asks'
                 price_level = float(data['price'])
                 new_size = float(data['size'])
@@ -146,4 +149,4 @@ def process_user_data(rows):
                 asyncio.create_task(perform_trade(market))
 
     else:
-        print(f"User date received for {market} but its not in")
+        print(f"User date received for {market} but its not in")