Package campaign encapsulates the state of a campaign.

Package election provides a wrapper around a subset of the Election functionality of etcd's concurrency package with error handling for common failure scenarios such as lease expiration.

NewOptions returns an instance of leader options.

NewService creates a new leader service client based on an etcd client.

ErrCampaignInProgress is returned when a call to Campaign() is made while the caller is either already (a) campaigning or (b) the leader.

ErrNoLeader is returned when a call to Leader() is made to an election with no leader.

Options describe options for creating a leader service.