class AWS::EC2::VPNConnectionCollection

def vpn_gateway_id options
  gateway_id = options.delete(:vpn_gateway)
  gateway_id ||= options[:vpn_gateway_id]
  gateway_id ||= filter_value_for('vpn-gateway-id')
  gateway_id = gateway_id.id if gateway_id.is_a?(VPNGateway)
  gateway_id
end