async def METHOD_NAME(mocker, instrument_provider):
    # Arrange
    mock_ib_contract_calls(
        mocker=mocker,
        instrument_provider=instrument_provider,
        contract_details=IBTestProviderStubs.aapl_equity_contract_details(),
    )
    # Act
    await instrument_provider.load_async(
        IBContract(secType="STK", symbol="AAPL", exchange="NASDAQ"),
    )
    # Assert
    assert len(instrument_provider.get_all()) == 1