code: func (c *Redshift) CreateTags(input *CreateTagsInput) (*CreateTagsOutput, error) {
  	req, out := c.CreateTagsRequest(input)
  	return out, req.Send()
  }
docs: // CreateTags API operation for Amazon Redshift.
  //
  // Adds one or more tags to a specified resource.
  //
  // A resource can have up to 50 tags. If you try to create more than 50 tags
  // for a resource, you will receive an error and the attempt will fail.
  //
  // If you specify a key that already exists for the resource, the value for
  // that key will be updated with the new value.
  //
  // 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 Redshift's
  // API operation CreateTags for usage and error information.
  //
  // Returned Error Codes:
  //   * ErrCodeTagLimitExceededFault "TagLimitExceededFault"
  //   You have exceeded the number of tags allowed.
  //
  //   * ErrCodeResourceNotFoundFault "ResourceNotFoundFault"
  //   The resource could not be found.
  //
  //   * ErrCodeInvalidTagFault "InvalidTagFault"
  //   The tag is invalid.
  //
  // See also, https://docs.aws.amazon.com/goto/WebAPI/redshift-2012-12-01/CreateTags