Edit the module's metadata.json file to add module dependencies. See the following example:

"dependencies": [
    { "name":" stankevich/python",
       "version_requirement":">= 1.18.x"
     }
  ]

The name key is the name of the requirement, namely, "pe" or "puppet". The version_requirement key is a semver (http://semver.org) value or range. See the following examples:

• 1.18.0
• 1.18.x
• >= 1.18.x
• >=1.18.x <2.x.x

These would all be valid values for version_requirement.

Check the metadata.json file for validity afterwards using the new PDK command, as follows:

$ pdk validate metadata

The great thing about adding module dependencies is the fact that, when you run the puppet module download command, Puppet will download all the module dependencies accordingly.