Missing documentation on Item Compressor configurations

https://developer.couchbase.com/documentation/server/5.5/cli/cbepctl/set-flush_param.html

The above page should document the following item compressor settings:

 Available params for set flush_param:
...
    item_compressor_interval     - How often the item compressor task should be run
                                   (in milliseconds).
    item_compressor_chunk_duration - Maximum time (in ms) the item compressor task
                                   will run for before being paused (and resumed at
                                   the next item compressor interval).
    min_compression_ratio        - Minimum compression ratio of uncompressed doc
                                   against the compressed doc. If the ratio happens
                                   to be lesser than this value, then a compressed
                                   document will be stored as an uncompressed.