NewAccountKeeper returns a new AccountKeeperI that uses go-amino to (binary) encode and decode concrete sdk.Accounts.

NewMigrator returns a new Migrator.

NewQuerier creates a querier for auth REST endpoints.

AccountKeeper encodes/decodes accounts using the go-amino (binary) encoding/decoding library.

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

AccountKeeperI is the interface contract that x/auth's keeper implements.