Format formats a Setting in a consistent manner, it is intended to be used when implementing the Setting interface.

NewPublisher creates a Publisher.

Type Any can be used to represent or implement a Setting of any type.

DurationFlag implements flag.Value in order to provide validation of duration values in the flag package.

A Publisher provides a mechanism for communicating Settings from a set of producers to multiple consumers.

Stream is returned by Latest and includes the name and description for the stream and the most recent values of the Setting that flowed through it.

Setting must be implemented by all data types to sent over Publisher streams.