Database.EventStore
data Event
data EventData
data Connection
data Credentials
data Settings
data Transaction
data DropReason
data Subscription
data Catchup
data CatchupError
data AllEventsSlice
data DeleteResult
data WriteResult
data ReadResult
data RecordedEvent
data StreamEventsSlice
data Position
data ReadDirection
data ReadAllResult
data ReadEventResult
data ResolvedEvent
data ReadStreamResult
data OperationException
data ExpectedVersion