bit painful to figure out but it seems to work ...
tibble(level0.list) %>%
unnest_wider(1) %>%
unnest_longer(4) %>%
unnest_wider(4) %>%
unnest_longer(7) %>%
unnest_longer(9)
bit painful to figure out but it seems to work ...
tibble(level0.list) %>%
unnest_wider(1) %>%
unnest_longer(4) %>%
unnest_wider(4) %>%
unnest_longer(7) %>%
unnest_longer(9)