func (c *TopicConfiguration) Path(path string) *TopicConfiguration {
	c.path = path
	return c
}
The path to store the data (all files belonging to a topic will be located
at <PATH>/TOPIC_NAME/)
[/tmp/q]
package sq
type TopicConfiguration struct {
	path        string
	segmentSize int
}
func ConfigureTopic() *TopicConfiguration {
	return &TopicConfiguration{
		path:        "/tmp/q",
		segmentSize: 16777216,
	}
}