class Geocoder::Lookup::Esri

def token(query)
  token_instance = if query.options[:token]
                     query.options[:token]
                   else
                     configuration[:token]
                   end
  if !valid_token_configured?(token_instance) && configuration.api_key
    token_instance = create_and_save_token!(query)
  end
  token_instance.to_s unless token_instance.nil?
end