code: func (c *StorageGateway) UpdateGatewayInformation(input *UpdateGatewayInformationInput) (*UpdateGatewayInformationOutput, error) {
  	req, out := c.UpdateGatewayInformationRequest(input)
  	return out, req.Send()
  }
docs: // UpdateGatewayInformation API operation for AWS Storage Gateway.
  //
  // Updates a gateway's metadata, which includes the gateway's name and time
  // zone. To specify which gateway to update, use the Amazon Resource Name (ARN)
  // of the gateway in your request.
  //
  // For Gateways activated after September 2, 2015, the gateway's ARN contains
  // the gateway ID rather than the gateway name. However, changing the name of
  // the gateway has no effect on the gateway's ARN.
  //
  // Returns awserr.Error for service API and SDK errors. Use runtime type assertions
  // with awserr.Error's Code and Message methods to get detailed information about
  // the error.
  //
  // See the AWS API reference guide for AWS Storage Gateway's
  // API operation UpdateGatewayInformation for usage and error information.
  //
  // Returned Error Codes:
  //   * ErrCodeInvalidGatewayRequestException "InvalidGatewayRequestException"
  //   An exception occurred because an invalid gateway request was issued to the
  //   service. For more information, see the error and message fields.
  //
  //   * ErrCodeInternalServerError "InternalServerError"
  //   An internal server error has occurred during the request. For more information,
  //   see the error and message fields.
  //
  // See also, https://docs.aws.amazon.com/goto/WebAPI/storagegateway-2013-06-30/UpdateGatewayInformation