def add_package(packages, **kwords)
      connection.send(:post, "/repos/#{self.Name}/packages",
                      query: kwords,
                      body: JSON.generate(PackageRefs: [*packages]))
      self
    end
def add_package(packages, **kwords)
      connection.send(:post, "/repos/#{self.Name}/packages",
                      query: kwords,
                      body: JSON.generate(PackageRefs: [*packages]))
      self
    end
Add a package (by key) to the repository.
 @param packages [Array<String>, String] a list of package keys or
   a single package key to add to the repository. The package key(s)
   must already be in the aptly database.