Mockup Labels
Mockup labels are created during the initial design and test phase for each instrument. They are not particularly good templates for designing a real label, in that they usually omit the half dozen or so discipline dictionaries needed to provide complete metadata for an actual observational product. But they do contain plausible values for the specific classes illustrated, as found in a sample product from the mission.
Mockup labels can be found in the New Horizions Mission Dictionary GitHub repo: https://github.com/pds-data-dictionaries/ldd-nh. They are in the test/examples/ directory. Available mockups are:
Instrument Class Summaries
These abbreviated labels, also available in the GitHub repo test/examples directory, show only the <nh:Mission_Parameters> class with the class(es) specific to the instrument. The values shown in the labels are nonsensical.