code: func (c *Glacier) GetVaultAccessPolicy(input *GetVaultAccessPolicyInput) (*GetVaultAccessPolicyOutput, error) {
  	req, out := c.GetVaultAccessPolicyRequest(input)
  	return out, req.Send()
  }
docs: // GetVaultAccessPolicy API operation for Amazon Glacier.
  //
  // This operation retrieves the access-policy subresource set on the vault;
  // for more information on setting this subresource, see Set Vault Access Policy
  // (PUT access-policy) (http://docs.aws.amazon.com/amazonglacier/latest/dev/api-SetVaultAccessPolicy.html).
  // If there is no access policy set on the vault, the operation returns a 404
  // Not found error. For more information about vault access policies, see Amazon
  // Glacier Access Control with Vault Access Policies (http://docs.aws.amazon.com/amazonglacier/latest/dev/vault-access-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 GetVaultAccessPolicy for usage and error information.
  //
  // Returned Error Codes:
  //   * ErrCodeResourceNotFoundException "ResourceNotFoundException"
  //   Returned if the specified resource (such as a vault, upload ID, or job ID)
  //   doesn't exist.
  //
  //   * 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.
  //