def METHOD_NAME(con_build) -> None:  # type: ignore
    # Ensures that the ConsumerBuilders are assigning a
    # not-None value to the required attributes
    # Depending on the attribute, we can verify this
    # to different degrees
    assert con_build.storage == get_writable_storage(test_storage_key)
    assert con_build.consumer_group == consumer_group_name
    assert isinstance(con_build.raw_topic, Topic)
    assert isinstance(con_build.metrics, MetricsBackend)
    assert con_build.max_batch_size == 3
    assert con_build.max_batch_time_ms == 4
    assert con_build.auto_offset_reset == "earliest"
    assert con_build.queued_max_messages_kbytes == 1
    assert con_build.queued_min_messages == 2