Missing one-sentence description of the methods when calling `--help`

[stinebuu]

I am missing documentation about what the different methods does. For instance las datasets -h gives:

usage: las datasets [-h] {create,list,get,update,delete,create-documents,get-documents} ...

positional arguments:
  {create,list,get,update,delete,create-documents,get-documents}

optional arguments:
  -h, --help            show this help message and exit

But I am missing a sentence about the theme/purpose of las datasets is. Similarly las datasets create -h does not give the main purpose of create:

usage: las datasets create [-h] [--description DESCRIPTION] [--name NAME] [--metadata METADATA]

optional arguments:
  -h, --help            show this help message and exit
  --description DESCRIPTION
  --name NAME
  --metadata METADATA   path to json file with whatever you need, maximum limit 4kB

Though it might be deduced from the name, it is not obvious to me that it needs to be called before las datasets create-documents.

A one-sentence description of each method would be very helpful.