def fetch_case_image(domain, case_id, attachment_id, filesize_limit=0, width_limit=0, height_limit=0, fixed_size=None):
    if fixed_size is not None:
        size_key = fixed_size
    else:
        size_key = OBJECT_ORIGINAL

    constraint_dict = {}
    if filesize_limit:
        constraint_dict['content_length'] = filesize_limit

    if height_limit:
        constraint_dict['height'] = height_limit

    if width_limit:
        constraint_dict['width'] = width_limit
    do_constrain = bool(constraint_dict)

    cached_image = get_cached_case_attachment(domain, case_id, attachment_id, is_image=True)
    meta, stream = cached_image.get(size_key=size_key)

    if do_constrain:
        def meets_constraint(constraints, meta):
            for c, limit in constraints.items():
                if meta[c] > limit:
                    return False
            return True

        if not meets_constraint(constraint_dict, meta):
            # this meta is no good, find another one
            lesser_keys = IMAGE_SIZE_ORDERING[0:IMAGE_SIZE_ORDERING.index(size_key)]
            lesser_keys.reverse()
            is_met = False
            for lesser_size in lesser_keys:
                less_meta, less_stream = cached_image.get_size(lesser_size)
                if meets_constraint(constraint_dict, less_meta):
                    meta = less_meta
                    stream = less_stream
                    is_met = True
                    break
            if not is_met:
                meta = None
                stream = None

    return meta, stream
Search with boolean must not
dataset/ETHPy150Open dimagi/commcare-hq/corehq/apps/api/object_fetch_api.py/fetch_case_image--crossover with--dataset/ETHPy150Open Yipit/pyeqs/tests/functional/test_bool.py/test_simple_search_with_boolean_must_not