I even clicked thorugh to the landcareresearch-g10k module to use a module to install g10k. The extent of the docs is this:

g10k
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Description
A module to manage g10k for linux based systems.

Limitations
Debian Based Systems.

Usage
A script is installed to /usr/local/bin called g10k.bash which includes the configuration specified in this module. Use g10k.bash to run g10k.

Example
    g10k.bash

That’s it. The REFERENCE.md isn’t much better. But even with a param-by-param outline, it doesn’t say what the entry point is, so I just try

puppet apply -e 'include g10k

(reasonable assumption), and is where I got this:

Error: Evaluation Error: Error while evaluating a Function Call, Class[G10k]:
  expects a value for parameter 'source_name'
  expects a value for parameter 'source_remote'
  expects a value for parameter 'source_basedir' (line: 1, column: 1) on node <http://voxserver.ornl.gov|voxserver.ornl.gov>

which is what directed me to the docs and generated this particular rant