def METHOD_NAME(rotkehlchen_api_server: 'APIServer') -> None:
    rotki = rotkehlchen_api_server.rest_api.rotkehlchen
    uniswap = rotki.chains_aggregator.get_module('uniswap')
    assert uniswap is not None
    events_balances = uniswap.get_balances_chain(addresses=[TEST_ADDRESS_1])
    assert events_balances == {}