This example gets the metadata, such as whether the artifact is selectable, filterable and sortable, of an artifact. The artifact can be either a resource (such as customer, campaign) or a field (such as metrics.impressions, campaign.id). It'll also show the data type and artifacts that are selectable with the artifact.
-help Show the help message. -artifact_name [optional] The artifact name, e.g. a resource such as customer, campaign or a field such as metrics.impressions, campaign.id.