def METHOD_NAME(self, logger, config) -> Tuple[bool, any]:
    try:
        # NOTE: When `config['credentials']['auth_type'] == 'oauth2.0'` is true, we
        # could here use a stream which requires OAuth 2.0 access.
        #
        # We currently don't do that there. 'private_reviews' seems to be too heavy
        # for that and it could be empty.
        business_units = self._configured_business_units_stream(config)
        for stream_slice in business_units.stream_slices(sync_mode=SyncMode.full_refresh):
            next(business_units.read_records(sync_mode=SyncMode.full_refresh, stream_slice=stream_slice))
            return True, None
    except Exception as error:
        return False, f"Unable to connect to Trustpilot API with the provided credentials - {repr(error)}"