class CopyTunerClient::Copyray

def self.augment_template(source, key)

message
Becomes:
message
This: 
def self.augment_template(source, key)
  return source if source.blank? || !source.is_a?(String)
  escape = CopyTunerClient.configuration.html_escape && !source.html_safe?
  augmented = "<!--COPYRAY #{key}-->#{escape ? ERB::Util.html_escape(source) : source}"
  augmented.html_safe
end