Level 2 supervoxel ids are one step up from the terminal supervoxel ids (level 1) that are the finest resolution in the chunked graph. Like root ids, level 2 supervoxels can be edited: this results in the level 2 id being destroyed and two new ones being created. Unlike the root id after a merge or split, only the l2 ids at the edit location change, while most of the others remain the same.
Examples
if (FALSE) { # \dontrun{
length(flywire_l2ids("720575940604351334"))
} # }