class TrustyCms::Config

for everything else a string.
If the config item is boolean the response will be true or false. For items with :type => :integer it will be an integer,

key = TrustyCms::Config.find_or_create_by_key('key').value

is equivalent to this:

key = TrustyCms.config['key']

Requesting a config item:

def value
  if boolean?
    checked?
  else
    self[:value]
  end
end