code: func (c *Glacier) GetDataRetrievalPolicy(input *GetDataRetrievalPolicyInput) (*GetDataRetrievalPolicyOutput, error) {
  	req, out := c.GetDataRetrievalPolicyRequest(input)
  	return out, req.Send()
  }
docs: // GetDataRetrievalPolicy API operation for Amazon Glacier.
  //
  // This operation returns the current data retrieval policy for the account
  // and region specified in the GET request. For more information about data
  // retrieval policies, see Amazon Glacier Data Retrieval Policies (http://docs.aws.amazon.com/amazonglacier/latest/dev/data-retrieval-policy.html).
  //
  // 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 Amazon Glacier's
  // API operation GetDataRetrievalPolicy for usage and error information.
  //
  // Returned Error Codes:
  //   * ErrCodeInvalidParameterValueException "InvalidParameterValueException"
  //   Returned if a parameter of the request is incorrectly specified.
  //
  //   * ErrCodeMissingParameterValueException "MissingParameterValueException"
  //   Returned if a required header or parameter is missing from the request.
  //
  //   * ErrCodeServiceUnavailableException "ServiceUnavailableException"
  //   Returned if the service cannot complete the request.
  //