code: func (c *Glacier) AddTagsToVault(input *AddTagsToVaultInput) (*AddTagsToVaultOutput, error) {
  	req, out := c.AddTagsToVaultRequest(input)
  	return out, req.Send()
  }
docs: // AddTagsToVault API operation for Amazon Glacier.
  //
  // This operation adds the specified tags to a vault. Each tag is composed of
  // a key and a value. Each vault can have up to 10 tags. If your request would
  // cause the tag limit for the vault to be exceeded, the operation throws the
  // LimitExceededException error. If a tag already exists on the vault under
  // a specified key, the existing key value will be overwritten. For more information
  // about tags, see Tagging Amazon Glacier Resources (http://docs.aws.amazon.com/amazonglacier/latest/dev/tagging.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 AddTagsToVault 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.
  //
  //   * ErrCodeResourceNotFoundException "ResourceNotFoundException"
  //   Returned if the specified resource (such as a vault, upload ID, or job ID)
  //   doesn't exist.
  //
  //   * ErrCodeLimitExceededException "LimitExceededException"
  //   Returned if the request results in a vault or account limit being exceeded.
  //
  //   * ErrCodeServiceUnavailableException "ServiceUnavailableException"
  //   Returned if the service cannot complete the request.
  //