NewKeeper creates new instances of the authority Keeper.

NewMigrator returns a new Migrator for the authority module.

NewMsgServerImpl returns an implementation of the MsgServer interface for the provided Keeper.

RemoveChain removes the chain with the given chainID from the chainInfo If the chain does not exist, the chainInfo is returned as is.

Keeper maintains the link to data storage and exposes getter/setter methods for the various parts of the state machine.

Migrator is a struct for handling in-place store migrations.