Declare an artefact. By doing this you turn on a number of orderly features; see Details below. You can have multiple calls to this function within your orderly script.
Details
(1) files matching this will not be copied over from the src
directory to the draft directory unless they are also listed as a
resource with orderly_resource(). This feature is only enabled
if you call this function from the top level of the orderly script
and if it contains only string literals (no variables).
(2) if your script fails to produce these files, then
orderly_run() will fail, guaranteeing that your task does really
produce the things you need it to.
(3) within the final metadata, your artefacts will have additional metadata; the description that you provide and a grouping