class GenesisRuby::Utils::Formatters::Base

def collect_required_key_values(response_object)

Ex. Amount to Major requires Currency
Collect required key's values requires for the Response Object formatting 
def collect_required_key_values(response_object)
  required_key_values = []
  required_keys.each do |required_key|
    next unless response_object.include?(required_key.to_sym)
    required_key_values.push response_object[required_key.to_sym]
  end
  required_key_values
end