code: def test_remove(portfolio, wallet_btc):
      portfolio.remove(wallet_btc)
  
      assert wallet_btc not in portfolio.wallets
  
imports: import pytest
  import unittest.mock
  from tensortrade.core.base import Clock
  from tensortrade.oms.wallets import Wallet, Portfolio
  from tensortrade.oms.instruments import USD, BTC, ETH, XRP, BCH
label_desc: Use image node_id 19 for calling a global function with example usage: test_remove(portfolio, wallet_btc) without return types